Kate and Derek

Very ordinary, and like most teenagers, they were consumed with thoughts of sex. And like most American teenagers, they were denied access to any real information about sex, except the absolutely ineffective admonishment - don’t do it. Typically, one of Derek’s buddies, Caleb, had stolen several books from his older brother when he was packing over the summer for his first year in college. Since he was going away to college and couldn’t take them, he let his kid brother ‘steal’ them and didn’t say a word. Caleb loaned one each to all the guys in their posse.

Derek had been whacking off several times a night to the pictures and stories in his magazine. He had already cum once this night and started reading again. As soon as he did, his cock rose to full staff, and like a homing machine, his hand wrapped around it and started moving. Derek was caught up in the scene in the magazine, two guys fucking one woman, one in her cunt and the other in her ass. He couldn’t believe it, that a woman could take two guys at once like that, but he couldn’t tear himself away either. Derek’s intense concentration might explain how Kate was able to open his door, quietly, but not purposely so, and he didn’t hear it.

He did hear her gasp. Derek threw the magazine down and turned onto his belly trying to hide his hardon. Blushing red, scared, and mad he yelled at his sister, “Get out!”

Her hand still on the knob, Kate said, “I’m going to tell mom.”

That changed everything. Derek, guilty as hell, didn’t even begin to consider denial. He switched immediately into caught-sibling mode. “Don’t tell, Kate. I’ll do anything you want.” This drama had played out many times in their youth, and they had finally reached an uneasy agreement when they became old enough to realize what goes around always comes back to bite you in the ass, if you’ll excuse the mixed metaphor, but neither sibling was exactly thinking well at the moment. They had reached a self-serving agreement that when one begged for mercy, the other granted it, at a price. Now came the negotiation.

Kate closed the door behind her, “What will you give me?”

Derek, his hardon completely gone, but still feeling guilty lying in his bed, naked and caught beating off, pleaded, “Get out, Kate. Please. We’ll talk later.”

Kate gave him a superior smile, since she now had the upper hand, big time. “Okay, but don’t try to deny it. I saw the pictures in the magazine and Mom will believe me when I describe the pictures.” She turned and sashayed out of his room.

Derek’s head fell forward onto his bed. He was well and truly screwed. His own sister had caught him jacking off to a 'dirty' magazine. She must think he was a real pervert. And what if mom and dad found out? Dad would kill him. He didn’t cry, he was well beyond that into self-negating anguish.

Kate got home earlier than Derek and waited in the front room, doing homework, but glancing at the clock every few minutes in anticipation. She had told her girlfriends at school that she had caught Derek jacking off. Serena, also in eighth grade, had caught her older brother several months earlier, so Serena led the discussion. “What are you going to make him do?”

“I don’t know. What should I ask for?” Kate asked her friends.

There was a general buzz as the girls talked; then in a moment of silence, Veronica said, “I’d make him do it and watch, I mean, the whole thing so I could see it, how guys do it.”

“EEW! That’s gross,” several of the girls yelled. But several others looked thoughtful, including Kate. Through the rest of the discussion, Kate was tuned out, already knowing what Derek's penalty was going to be.

Derek came in the door, slamming it behind him. He headed for the stairs. “Where are you going?” Kate asked.

“Up to my room,” he mumbled.

“To get the magazine?” Kate asked.

All pretense fled. “Kate, you just can’t tell mom and dad.” Derek came over and knelt in front of Kate in the posture of supplicant.

She smiled in victory.

“What do you want?” he asked, defeated.

“I want to see the magazine,” she said.

His mouth hung open. “Kate,” he said, scandalized by his younger sister’s demand.

“And I want to watch you do it,” she said, her voice unsure, since she knew she was taking a risk. If he refused he might just be able to turn the tables on her since she wouldn’t be able to admit the price she had asked for her silence.

“You what?” he asked, stunned by her price.

“I want to see your magazine and I want to watch you do it,” she said, working at sounding very businesslike.

“But you’re too young,” he said.

Angrily, she spit out, “Am not.” Then she recovered enough to say. “Agree or I tell mom tonight about your magazine.” Kate looked at the clock. “You have two hours.”

Derek sat stunned for a few seconds. By the unwritten rules of the game, if you got caught you paid the price asked. He just couldn’t believe his little sister wanted what she was demanding. Kate was too young… He looked at her and, in a flash of insight, he realized he hadn’t noticed that Kate had grown up. He knew why she wanted to see the magazine. The price asked made sense only if she wanted to see it for the same reason he liked it. If she was sexually curious like he was, it made sense, and since the rules were the rules, he had to agree. “Okay,” he said quietly.

Kate jumped off the couch, “Show me the magazine,” she said, bouncing on her toes.

Without a word, Derek led her to his room. He dug the magazine out of the back of his closet and handed it to her. She sat on his bed and flipped through it. She blushed at some of the pictures, like the set showing the man’s cum flying through the air to hit a girl in the face. “Where’d you get the magazine?”

“You can’t tell anyone,” he said.

She nodded in agreement.

“Caleb. He got it from his brother when he went off to college,” Derek explained.

This accounted for the state of the magazine, well thumbed. Derek, feeling just a bit more comfortable, sat next to Kate and looked at it with her. He found himself getting hard looking at the pictures, despite Kate’s presence. Kate glanced over and saw the bulge forming. She handed him the magazine. “I want to watch.”

Derek swallowed, his mouth suddenly dry. “Kate? I showed you the magazine.”

“I told you I wanted to watch and you agreed,” she said, which wasn’t exactly true, but he hadn’t disagreed and had come up here and by the rules that was a tacit agreement.

Derek blushed a furious red.

“Come on Derek, show me how a guy does it,” she pleaded.

Even in his embarrassment he caught the way she said it and knew something else she was admitting; she did it too. “I’ll show you if you show me at the same time,” he said, taking a chance. This was outside the rules, but sometimes continued negotiations were allowed and this was a hell of a different negotiation for the kids.

“No way,” Kate said.

“I will if you will,” he said. “You do it too.”

Kate blushed. She really wanted to see Derek do it. She had been thinking about it every since Veronica had said she would want to see. She knew she was pushing the limits. Since she had looked at his magazine she had lost her leverage anyway. Her desire overcame her embarrassment. “Okay.”

They sat stock still for a few moments. Neither could quite believe there were actually going to do it in front of the other. Derek moved first. He lay back on the bed and pushed his pants down. His cock sprang up and slapped his belly, throbbing as it bounced in the air.

Kate’s eyes locked on it. She had only the briefest glance of it before. It was like the pictures, but oh so much more thrilling in the flesh.

“You’re turn,” Derek said. Kate pushed her panties down and off her foot. “I can’t see,” he said, her skirt still covering her. Kate stood, then unzipped and pushed her dress off. Derek’s eyes locked onto her pussy, covered by a small triangle of light brown hair, her labia swollen and reddened. He wrapped his hand around his shaft. She put her hand between her legs and dipped a finger into her slit, already wet with her arousal.

Derek smelled her arousal and the pheromones drove him crazy, even though he had no idea why. He began stroking his shaft, the skin moving on the column as his hand stroked it. Kate lay on the bed next to her brother and couldn’t take her eyes off Derek as her own hands began playing with her clitoris. Derek was holding back as best he could, hoping to make this last as long as possible. Kate had no such need. She had been turned on for an hour while she waited downstairs. This was the most erotic thing she had ever experienced and she gave in to it fully.

Derek was first; he couldn’t hold off any longer. His eyes closed as his entire body seemed to be blasting off through his cock. Kate gasped as the first spurt of cum blasted high into the air to splash onto his heaving belly, then another and another. It pushed her over the edge and her own climax burst into her body as his hand was slowing. She didn’t see the last dribbles as her eyes closed and her orgasm pounded into her body. Derek opened his eyes in time to see her hand furiously rubbing her pussy as she moaned and grunted in climax, her hips bouncing on the bed. Kate gasped and moaned as she crested her own climax and fell back onto his bed, breathing hard. Derek was stunned that his little sister could look, well, so incredibly sexy.

“Wow,” Derek whispered.

Kate opened her eyes, and giggled at the expression on his face. “Yeah, wow.” She sat up and saw the mess they had made, Derek’s cum had splattered everywhere. “We need to get cleaned up.”

Derek looked at himself, cum all over his stomach and groin. “First shower,” he said, bolting for the bath.

Kate didn’t feel like arguing, still held in the lassitude of sexual completion. She lay on her brother’s bed and smelled the aromas of sex, almost writhing on the bed in happiness, like a cat in heat. 'This wouldn’t be the last time,' she thought. 'No indeed.'

At lunch the next day, Kate’s friends surrounded her, demanding to know. Kate smiled provocatively.

Serena led the charge, “Okay, obviously something happened. Tell us.” The rest gathered closer.

Kate leaned forward and began telling them what happened. When she got to the actual scene she left out the part where she too joined in, considering that the girls were really interested in knowing about how guys did it anyway. She described how Derek looked, his throbbing cock, and how, at climax, the white goo flew everywhere.

There was a stunned silence, then Veronica broke it, “Gee whiz. I want to see it.”

Serena broke the silence that followed that by saying, “Yeah, me too. Kate, you have to let us come over.”

“What? No way,” Kate yelled.

“Yeah, way. Are we your best friends forever or not?” Serena asked.

Into the silence, as each girl looked at Kate and she looked back into the accusatory faces, Kate answered, “Of course you guys are my best friends forever…”

“Good,” Serena said with a tone of finality. The girls nodded. “I’m going.”

Veronica blurted out, “Me, too.”

Several girls couldn’t quite work up the courage. Gillian, she of the wild red hair, was the only other to say, “I want to come over. Is it okay, Kate? Please.”

Kate felt trapped. They were her best friends. “Okay.”

Derek walked into the trap in all innocence. All he saw was a bunch of Kate’s friends sitting and talking. He hurried towards the stairs. “Hi, Derek,” Serena said sexily.

Something in that voice troubled Derek. “What?”

“We want to see too,” Serena said.

Derek and Kate locked eyes, both surprised; one by the boldness, the other by the topic. Derek could see the surprise in Kate’s eyes and assumed the best. He was wrong, but he tried. “See what?”

“What you showed Kate yesterday,” Serena answered.

“Kate!” Derek said accusatorily.

Serena jumped up, afraid that it was going to spark an argument between the two siblings. The last thing she wanted was a fight. “Derek, come on. Don’t be mad. Please, we want to see too.”

Veronica joined in, also pleading, “Please, Derek.”

He looked at Gillian, who paused then squeaked, “Please.”

Kate was looking down and picking at her fingernails trying to ignore his stare. It would do no good to yell at her, Derek realized. He looked at the three girls and with the same sort of flash he saw that, like Kate, the girls had become sexy overnight. That changed everything. “I will if you will.”

Veronica answered without thinking, “Okay.” Serena and Gillian didn’t say anything.

Derek smiled and told Veronica, “Come on.”

She glanced at Serena and Gillian who didn’t move. Veronica stood up anyway and followed Derek. They were half way up the stairs when Serena burst out, “Okay, wait for me,” as she dashed up after them.

Kate looked surprised and disgusted. Gillian blushed red, but stood and followed the other two girls up to Derek’s bedroom. In the room, Derek kicked the door closed. The girls all jumped at the sound. Derek felt confident seeing how uncomfortable the girls were. He had done this before. As he surveyed the girls he started getting really excited too. They were little foxes: Latina Veronica, red-headed Gillian, and blonde Serena. His cock swelled in anticipation of seeing them naked.

He jumped on the bed, “Come on.”

The girls looked at each other, wondering who would be the first. Veronica sat on the bed. Serena and Gillian also sat on the edge looking just moments away from running.

Derek lay back against the foot of the bed and pushed his pants off, his cock standing straight and hard. Three sets of eyes were riveted to it. “Your turn,” he said.

They glanced at each other. Finally, Serena said, “What the hell. I want to see it,” and began throwing her clothes on the floor. Soon, she was naked, as was Veronica. Gillian was last but she followed the lead of her friends. Derek had taken off his clothes and tossed them off the bed as well.

“You guys lay against the headboard,” he said.

They did, so that he was staring at three pussies, all different. Veronica’s bush was dark and wiry. Gillian’s was a dark red and curly. Serena’s was a tawny color and very wispy, barely covering her at all. “I’ll only do it if you guys all do it, too,” he said. He wrapped his hand around his cock and waited. Three hands went between six legs. He stroked once and watched. Fingers dipped into wet slits. Derek couldn’t believe his luck, they were actually all going to play with themselves. Nothing could have held him back as he began stroking his cock, his eyes unwavering from the girls as they quickly got into it as well.

A smorgasbord of prime grade A young woman was spread before him. He eyed their small tits, nipples now hard and distended. He looked at the flat expanse of undulating belly leading his eyes down to the juncture of their legs where he caught glimpses of red pussy through spread fingers as the girls played with themselves. He felt the system pressure spike in his loins. He wasn’t going to last long at this pace. He slowed way down, barely touching his cock as his hand moved up and down, giving the illusion of masturbation more than the fact. It helped him keep from cumming too soon.

Serena lay in the middle. Her legs were tangled with Veronica on one side and Gillian on the other. But that was a small distraction from watching Derek directly across, his red tipped cock in his hand as it moved up and down. She saw the tip leaking a shiny liquid and wished she could touch it. She imagined she was touching it. Then she imagined Derek moved from the other end of the bed and lay between her legs. He moved forward and his cock spread her wet and ready pussy open and plunged into her. Serena nearly came when she saw that in her mind. She was so close…

The room was filled with the sights, sounds, and smell of sex, and Derek’s body was overloaded with stimulation. He fought it back, building up pressure until he couldn’t hold it off anymore. It felt like it started in the small of his back, that powerful contraction that sent his first glob of cum flying from the end of his cock. He had never felt as powerful a cum as this one.

The glob landed on Serena’s belly, glistening. It seemed to burn her skin where it landed. She was so close to orgasm... she imagined the white goo was inside her, filling her just as she had been dreaming, and over the top she went…

Derek didn’t notice where the first blast hit since the second was already bursting up and splat, it landed on Gillian’s leg, the third less powerful hit the bed in between, and the last few gouts of cum covered Derek’s loins.

Serena howled as her climax burst in her. Gillian heard and felt Serena’s climax and added the burning sensation of feeling his cum on her leg, pushed her into her climax. Veronica groaned as she, too, felt the waves of pleasure filling her body.

In the relative quiet that followed, the four youths looked at each other realizing they had shared a magical experience but one that none of them quite could fully understand. It was a bit confusing. They had all shared incredible pleasure, and yet they knew social norms had been trodden under. This conflict left them uncomfortable.

The girls soon jumped up and ran to the bath to clean up. They thanked Derek, but quickly dressed and ran out of the house.

Bemused, Derek got up and washed as well. When he came out of the bath, he saw Kate’s door closed. As he got close he heard the sound of Kate sobbing. Surprised, Derek opened her door a bit. Kate was lying on her bed and was indeed sobbing. Derek went in. “What’s the matter?”

Kate turned on him, “You bastard.”

Derek took a step back, “What?”

“You heard me,” Kate hissed.

“But I don’t understand,” he answered.

“You just did it with my three best friends and you don’t understand!” Kate yelled.

"You brought them and you told them about it!"

Kate's eyes widened as she realized she had caused it. "But you weren't supposed to do it with another girl."

Derek considered what she had just said, saw the turmoil in Kate’s face, the mix of emotions, and understood. “You’re jealous.”

The naming of the actual thing stopped Kate. She couldn’t admit that. “No, I’m not.”

“Kate, you are. But why are you jealous of me?” Derek asked her.

Since it was true, the answer simply popped into her head, “Because I want you to myself.” Surprised to hear that come from her mouth, she had been blaming it all on her friends and Derek as she cried in her room unaware of her own feelings until they burst forth in answer to his question. Kate put her hand over her mouth. Derek was smiling now. Kate said, “Well, maybe a little.”

“I didn’t know,” said Derek. “Does that mean you want to do it again?”

She sniffled, “Yes.”

Derek sat next to her on the bed and wrapped her in his arms, kissing away the tears. They were, after all, just an ordinary brother and sister.

Saturday was laundry day and their mom, Mary, came around to collect the laundry. Derek, as often happened, forgot to tear the sheets off his bed. She clucked at her son and started tearing apart the bed only to see the stains. She bent closer to see what this was only to recognize them; male cum stains. She shook her head knowing she was losing her baby. He was old enough to have wet dreams. She’d have his dad have the talk with him.

Derek and Kate didn’t slow down in their fun. Now that they admitted they both liked it, wanted it, they soon passed a bigger barrier; they kissed as well. Once they had kissed they could no longer pretend it wasn’t true sexual intimacy. The next night they tried oral sex for the first time. It was all quite ordinary and innocent educational exploration.

Saturday night, Mary talked with Paul, their dad, and told him what she had found. “I think Derek’s having wet dreams.”

“Sounds like it,” he agreed.

“I think you should have the talk with him,” she said.

He nodded. “How about Kate?”

“Girls are different,” she said.

“Vive le difference. But they’re about the same age as Madge and I were when we started,” he said.

“Don’t remind me. I still think that was perverted,” she said.

“That’s because you only had sisters. If you had a brother…” he said.

“I still wouldn’t have screwed him,” she said vehemently.

“Maybe. Okay, I’ll have a talk with Derek, but I still think you should have a talk with Kate,” he said.

“She’s only in eighth grade.”

He nodded, “We’ll see.”

That night, his dad pulled Derek into his study and closed the door. Derek was nervous because this was unusual. “Well hell, let’s just get to the heart of it. Your mother thinks you’re having wet dreams,” Paul said.

Derek was surprised, since he wasn’t, then he knew what she had found. The best thing was to admit to the wet dreams. He was going down on his sister nightly. He sure didn’t want to admit that. “This is embarrassing, Dad”

“Son, don’t be embarrassed. You think you’re the only guy who ever had wet dreams? Hell, guys are all alike. You might even start to notice you sister is a girl,” he said watching carefully. Derek reacted, then blushed. “You might even do things with your sister.” Derek’s face blushed red.

Paul sat back in his chair, certain now. He needed to know how far this had gone... pretty certain it had gone far. “Son, you are old enough now to know some things. I need you to promise not to tell this to anyone, not your mom, not your sister. Your mother knows, but she wouldn't like it if you knew, so don't tell her. This has got to be a man to man thing. Okay?” he asked.

Derek nodded his agreement.

“I was about your age and Aunt Madge was Kate’s age when we sort of started messing around.” He fixed Derek in his eye, “Probably like you and Kate.” Derek’s face could have been a stop sign it was so red. “So, I’m not surprised. But I need to know how far you two have gone.”

“Dad…” Derek started to protest. His dad shook his head and smiled, he wasn’t buying that line. Derek sighed mightily. “We’ve kissed and I kissed her down there and she... did the same to me.”

“You haven’t had sex?” dad asked.

“No, I promise we won’t,” he said.

“Sure, you promise until the two of you are both horny as hell in bed and you are pressing up against her and she moves a little because she wants it just as much as you do, and she pushes back, and you slide in and then you are going to say, 'No.' I don't think so. Derek, promise me to avoid it for a couple days. Tell Kate that you are scared that we are catching on. That maybe will slow her down for a couple days. Okay?” he asked.

“I promise, Dad.” Derek said.

“Get out of here, and I’ll be listening,” he said as Derek scrambled out of the room.

That night, two very different but very emotional talks happened in the house. Derek and Kate’s was more rational, though just as emotional. It ended up with Kate scared silly and sneaking back to her own room.

Paul and Mary’s didn’t go as well. After Paul told her what he had found out and his suspicions, Mary blew up. He finally calmed her down to a simmer. “Look honey, this happens in the best of families.”

“How can you joke at a time like this?” she asked.

“Because sex shouldn’t be that serious. It isn’t life and death unless you make it so. Now, what do you propose?” he asked.

“We’ve got to keep them separated. We’ll send Derek to a military school,” she said.

“We’re not sending Derek or Kate away. They are our children, you know,” he said.

“How are we going to stop them?” Mary asked.

“I'm not sure we can, and if we aren't sure we can, then what should we do?” Paul asked.

Mary was waving her hands around unable to talk.

“Dear,” Paul said in a soothing voice. “You are missing an easy solution. Put her on birth control.”

“But that won't stop them,” Mary said confused.

“We already agreed we can't stop them. At least it will prevent the bad outcomes. That's what is important. If they are going to do it, let’s at least have them do it safely,” Paul said.

Mary looked surprised. She had only seen one possible solution. This was just so different to think about any other way to handle it. Paul decided to drop it for the night and let it settle in.

It took several days, but it finally did sink in that this was the most rational solution to the problem. The final straw was when Paul asked Mary if she would have stopped having sex just because her parents objected. Mary was honest with herself. She remembered how heady those days had been and she knew she would have found a way around any barrier her parents tried to put in her way. Once a woman has decided she's going to, she is going to...

Mary took Kate to the family doctor and got her started on birth control pills. That afternoon, Kate told Derek that she had taken her first pill and she had promised their mom not to do it until she was safe.

That night, Derek got his father aside and asked him, “How come you guys put Kate on the pill?”

“Why do you think?”

“I don’t know, Dad. It doesn’t make sense,” Derek answered.

“Because we know you guys will do what you want to do just like any human being. This way, you won’t fuck up your lives. I know what you are going to do as soon as she's safe, in four weeks if my calculations are right,” Paul said.

“Three weeks, six days, according to Kate,” Derek said before he realized what he was admitting with that comment.

Paul laughed, then told Derek, “Son, there’s the biggest reason, because your sister is counting the days. Derek, if your mother and I had our choice, you and Kate wouldn’t be involved. I know from experience that it is a precarious path you guys are following. But you are, and all we can do now is try to make sure it works out best the both of you, that you don’t get hurt permanently.”

“Thanks, Dad,” Derek said.

“Okay, leave her alone until she’s safe,” he told his son. “Now, go do your homework.”

It was three weeks and six days later when Paul told Derek and Kate at the breakfast table, “I’m taking your mother out tonight for dinner and a show. We won’t be home till probably one in the morning. So you have to stay home tonight,” he said.

Derek and Kate had been counting down the days and knew this was the day. They traded a look. When Derek looked back at his dad, Paul winked, and Derek knew why the big date now.

Before he left, Paul cornered Derek and said, “Derek, it is important to a woman. Make it special.”

“Yes, Dad.”

Paul smiled and was out the door. Derek was left thinking about the evening. In fact, that is what Derek spent the day thinking about, as did Kate.

Kate was a bundle of nerves by the time she got home from school. She took a shower and primped in the bathroom until Derek was due home. She put on a pretty dress and waited and waited.

Derek walked in with a grocery bag and went straight to the kitchen. He started putting things away, some in the fridge and some in the oven. Kate made her way slowly downstairs, seeking the big entrance. Derek emerged from the kitchen just as Kate was stepping off the last stair. He stopped, eyeing his little sister, so beautiful in her dress, her hair up, make-up just right.

“Wow,” he said.

Kate could feel his eyes on her. She flushed. This was exactly what she wanted.

Derek whistled. “You’re beautiful,” he said quietly.

“Thank you,” Kate said coming into his arms. They kissed. After, they held each other, staring into each others’ eyes. “What did you bring?” she asked after a pause.

“Dinner,” he said, still looking at how grown up his little sister looked. Derek had stopped at the corner market and deli where they had complete dinners to go. He figured a nice romantic dinner before they… did it.

“What did you get?” she asked.

“Let me show you,” Derek said, leading her back into the kitchen. He pulled the dinner out of the oven.

“I’m hungry just looking,” Kate said smiling.

Derek looked at the clock. Dinner was to be a six sharp. He had the whole evening planned but what the hell. He pulled the plates out of the oven. “Sit down.” Kate smiled and went to the dining room table as Derek brought out dinner and silverware. He went back into the kitchen and returned with a bottle of wine and glasses from his dad’s stash. He hoped this would be okay, but was pretty sure their father would approve on this special occasion. He had trouble opening the bottle, but finally got the cork out.

They held up their glasses. Kate was happy. Derek was making it perfect. During dinner, they talked about school and friends, everything else. Derek cleaned up while Kate finished her glass of wine. They both had only the slightest buzz, just at the feel good point.

Derek came back and stopped. How to say it, since now was time.

Kate saw him hesitate and knew why. She smiled and stood up. She put out her hand. Derek took it and led her upstairs to his room. They came into each others’ arms and kissed. Clothes were quickly heaped on the chair and they were quickly in his bed. It was different this time. Both of them felt it.

They paused and Derek asked, “Are you sure?”

“Yes, please be my lover,” she said.

The love swelled in his chest, just as her love swelled. They kissed with all of the passion and love they could put into a kiss. They had four weeks of foreplay leading up to this moment. There was no need for more. Derek was as hard as he had ever been. Kate had been wet for hours just thinking about this moment.

He rolled between her legs which spread open in happy greeting. Kate took his cock, so familiar now, and led it to her. Derek let himself be guided by his sister until he felt the head of his cock just entering her, hot and wet. They held each other’s eye; passion, lust, and love in their gaze.

Derek pressed forward as Kate felt him opening her. There was pressure, and a quick moment of pain, but she felt complete for the first time as she joined completely with her lover. As his cock filled her she pulled him against her wanting to feel as close to him as possible.

Derek had never experienced anything as wonderful as this. His hips jerked back and forth as he tried to gain some control but this time was about fulfillment. Not masterly lovemaking. The pressure had been building for days and couldn’t be denied.

“Oh… I’m going to cum…” he moaned.

“Yes,” Kate encouraged him. “Cum in me.”

That was all it took. His balls contracted and blast after blast of cum poured into his sister. She felt the cum filling her and she knew she was a woman now.

They kissed, happy to finally be lovers. The great lovemaking would come later.

Kate and Derek explored sex, learning from each other how best to please their partner and how their partner could best please them. The only tension was Kate’s girlfriends. They wanted Derek for themselves.

This didn’t bother Derek of course. The idea that a bevy of beautiful girls had the hots for him was not a problem as he saw it. But it did cause fits of jealousy in Kate. Sometimes, she took them out on Derek and sometimes on her friends. As soon as she realized it, she felt guilty since she couldn’t blame Derek because her friends thought he was hot, and she couldn’t blame her friends for thinking her brother was hot. They didn’t know that she was fucking him, and she couldn’t tell them. It was the one sore spot.

The problem took care of itself.

Kate finished middle school along with her friends. The summer before they were all to go to high school was filled with fun and a bit of trepidation. It was also filled with sexual tension. The girls spent a lot of time at Kate’s since Derek was there. The air was filled with flirting and the underlying tension from it. At first, it drove Kate batty, trying to keep Derek away from her friends and her friends away from Derek. Finally Derek sat Kate down one afternoon when they were alone.

“Kate, you’re acting weird. Every time one of your friends talks to me you practically jump down her throat,” he said.

Kate let fly on her frustration, “Why are you encouraging them? You’re my boyfriend.”

Derek let that hang in the air for a second. “No, I’m not. I’m your brother.”

Kate’s mouth hung open. “But…”

“Kate, we knew this when we started. Dad told me to be careful because we couldn’t actually be a couple. Kate, I love you, but we can’t ever be a real couple. We were just teaching each other. You know that,” he said, "We're just having fun."

Kate sort of huddled back into herself, “I know, but you’re going to have all those girls…”

“And you won’t have anyone?” he asked.

“Yeah,” she said vehemently.

“Kate, I still love you. I'm not abandoning you. I’ll always love you even when I get married some day. I’ll love my wife but I’ll still love you,” he said.

“Oh, Derek,” she said and launched herself into his arms bowling him over. They kissed, the kisses growing more passionate, ending up making love right on the couch in the den.

It was the breakthrough. Kate decided that she couldn’t be jealous anymore, even if she did have a few attacks over the rest of the summer. The next day, Serena, Veronica, and Gillian were over. The four girls were sitting in the den, talking when Derek walked in. Kate was a bit miffed that the other three turned in unison to Derek, but she had decided last night. They deserved what they were about to get.

“Derek, want to play strip poker with us?” Kate asked.

Three heads turned back to look at Kate, their eyes wide in surprise.

“Sure,” Derek answered. Three heads turned to look at Derek.

“Get the cards,” Kate told Derek. Three heads turned back to look at Kate, the surprise turned to disbelief.

“But Kate…” Serena said.

“Well, excuse me but he’s already seen the three of you frigging yourselves. I didn’t think strip poker would be a big deal,” she said.

There was nothing to say to that and anyway, Derek was back with the cards. He joined the circle.

He shuffled and dealt. The three girls were stunned how quickly they found themselves in a strip poker game. It had happened so fast, they didn’t even have time to form a protest. Serena lost the first hand and took off her sandals. That was the last point at which an effective protest could have worked. After that, they were in to the end.

Veronica was the first who lost her last item, her panties. By then, Serena was down to bra and panties, Gillian to panties, Kate to bra and panties and Derek to his shorts. Veronica pushed down her panties and tried to sit so that nothing showed. Kate wasn’t having it. “Sit like the rest of us, chicken,” she said.

Since the rest were sitting crossed legs, that would put her on display to Derek, sitting opposite her in the circle. He smiled and winked. Veronica, blushing, steeled herself, but sat up, her legs spread open. Derek’s eyes locked onto her as her blushed turned crimson seeing him staring so openly.

Gillian asked, “Is she out of the game?”

Kate looked mischievous, “No, she plays for forfeits. Winner chooses the forfeit.”

The three girls looked stunned. Kate calmly dealt the next hand while inwardly laughing. They had wanted to play games with her boyfriend, um brother, she corrected herself, she was going to make the game have a price. She lost her bra. Gillian lost hers next. Derek lost his shorts so that here were two naked kids in the circle.

Derek was going crazy looking at the girls. He needed four eyes. The girls were staring at Derek’s erect cock.

Then Veronica lost while Kate won the next hand. Kate gave Veronica a look. Veronica didn’t like that look at all. “Kiss Derek’s cock.”

There was a stunned silence. Kate simply looked at Veronica. This was crossing a big line and they all knew it. Like all teenagers, the girls had talked about what it would be like to give and get oral sex. Their speculations were wildly wrong but they had no access to accurate information. The truth was, Veronica while appearing scandalized as she knew she was supposed to, actually wanted to know what a real cock felt like.

She crawled across the circle, looked up at Derek who smiled and leaned back to give her room. Veronica’s hand went round his shaft. She bent forward and kissed the tip.

“Suck it,” Kate said softly.

Veronica opened her lips and took the head of his cock into her mouth.

Derek moaned in pleasure. Gillian and Serena couldn’t take their eyes from the scene. Veronica did a few bobs, wondering if she was doing it right. Derek certainly was enjoying it. She sat back. “Oh wow,” Gillian said under her breath. She wanted to ask Veronica what it was like but Kate was dealing again.

Kate lost her panties next, then Serena lost hers leaving only Gillian with clothes. “I won,” she announced.

“Not yet. We still have forfeits,” Veronica said. She had a little payback in mind for Kate.

Derek wasn’t stupid and immediately began dealing the next hand. Gillian lost and they were all on forfeits. The tension rose knowing that every hand would be a forfeit hand.

Gillian lost again and Kate won. She looked at Derek’s cock standing so proudly. She didn’t even need to say it. Gillian bent over and took the head of his cock in her mouth, slowly stroking the shaft with her hand. Poor Derek, he didn’t care how inexperienced she was, he was soon close to losing it. Gillian pulled away, blushing.

Derek lost the next hand and Kate won. She gave him a smile and he knew it was going to be good. “Lick Serena’s pussy.”

He crawled over to the blonde girl, pressed her back on the soft carpet, spread her knees, and began kissing and licking her pussy. Soon, she was moaning in pleasure. Derek didn’t stop until Serena crested her climax. Veronica and Gillian looked on in wide-eyed open-jawed wonder. Derek, his face shiny with her cum, smiled as he settled back for the next hand. Serena was slow in rejoining the group.

Kate lost and Veronica won after the pause for Serena’s orgasm. Now was payback. Veronica looked at Kate and knew Kate would never do it thereby losing the game. “Suck Derek’s cock.”

Gillian gasped, then laughed. “You lose,” she said to Kate.

Kate smiled, leaned over and sucked his cock into her mouth.

Gillian, Veronica, and Serena were all scandalized and fascinated, just as teens are to all forbidden things, drawn to it like moths to a flame. It’s like the drinking age: forbid alcohol and teens flock to it. Then people wonder why there is so much teen drinking. Duh.

Kate sat back up smiling at the girls. “Did not lose,” she said. “Your deal,” she said to Serena.

Serena was still in shock as she started dealing. She broke up a pair of aces without realizing it and lost. Kate won. She knew the three girls were ganging up on her, trying to make her lose. She decided to up the ante steeply, sure that the girls would chicken out. Maybe not Veronica, but if Serena or Gillian quit, the game would be over. She smiled at Serena who looked nervous, knowing that Kate was thinking of something outrageous to have such a smile. “Sit on Derek’s cock.”

The silence was deafening. Even Derek looked shocked. Veronica was staring at Kate but slowly turned to look at Serena. Gillian joined her a second later. Serena was staring at Derek’s cock, hard, red and throbbing, sticking straight up from his loins. Serena looked at Kate hoping for a reprieve. Kate said nothing.

But Kate had miscalculated. Serena had just climaxed from Derek’s tongue and in her state, the idea of more intense sex resonated deeply inside her being. Her body wanted more, real sex, being pierced by a man, filled and satisfied. Serena crawled over Derek, who lay back. She straddled his hips. One hand between them, she held his cock straight up, feeling the hollow in her body that desired his shaft. She wanted it inside her. She rubbed his cock over her pussy, wetting it, then placed it in her and sat down.

Veronica and Gillian gasped as they saw his cock disappear inside Serena. She said nothing as his cock spread her open. There was a slight pain, not enough to stop, as she felt his shaft fill her. It was what she wanted, needed. She ground her hips down until their bodies were together.

Veronica stared at the juncture of their bodies, knowing his entire cock, which had looked so large, was now inside Serena, “Jesus,” she whispered.

Kate was flabbergasted, it had happened so fast. She felt an urge to push Serena off Derek, after all, he was her lover. But she had done this herself. She was mad, at herself. Then she got mad at Serena for not doing what Kate expected, but she couldn’t do anything about it. All she could do was to watch as Serena began to move her hips around, then up and down. Derek had a huge smile on his face, which also frosted Kate. ‘Damn him,’ she thought, ‘Enjoying fucking Serena.’

Serena was now moving higher with each stroke, really enjoying the feeling of Derek’s cock inside her. She was biting her lip as her hips moved faster, up and down and around, grinding into him, mashing her clitoris into him. Still aroused from her recent climax, Serena quickly peaked, yelling out and falling prostrate over Derek. All three girls stared, two envious of Serena, one jealous about Derek.

Derek had been driven too close to stop now after being aroused constantly since the game had started. His hips pumped up once and loosed his own cum, blasting it into Serena’s pussy above him. He fell back too, Serena lying on top of him. The girls could see the froth of his cum around the opening of her pussy and covering his cock. Kate was mad, Veronica and Gillian were filled with desire to know what it felt like, what Serena had just experienced.

Veronica looked at Kate, “I want to do it too.”

Gillian heard her own words coming from Veronica. “Yeah, me too,” she echoed what Veronica had said.

Kate was surprised and it overcame her anger. “Why?”

“Don’t get mad, Kate. I know he’s your brother but… Oh God, watching Serena, she looked like… I don’t know… I just want to.” Veronica couldn’t find the words to express the desire filling her body and mind.

Kate looked at Gillian and saw the same lust in her face. She understood that feeling. She looked over at Derek and Serena still entwined, Derek’s cock still in her. She understood something else, that Derek would never ‘be’ hers. The intellectual understanding of the prior night became an emotional understanding as the reality burned into her eyes. She was just borrowing him from whatever woman would eventually be his. And, she would also want some other man who could be hers, all hers, and the jealousy vanished. She laughed, “He’s still hard. Push Serena off.”

Veronica was scandalized, then realized that Kate was teasing her. She giggled. The lust returned as she looked at the couple. Serena pulled herself off Derek. His cock had stayed erect. Kate looked at Veronica and arched her eyebrow, daring the girl. Veronica took a deep breath and crawled over to Derek and straddled him. His gooey cock found her opening and Veronica sat down forcing the knob into her aroused pussy. “Ugh,” she yelped. She looked around. “Ouch. That hurt.”

Serena, lying back, still in bliss, said, “It goes away fast.”

Derek was softly pushing against Veronica forcing his cock deeper with every stroke. Veronica felt the pressure of his cock going deeper which was greater than the fading pain of her cherry being torn. “Ohh,” she said. Her attention shifted to the feeling of Derek’s cock slowly filling her. He looked over to see Gillian staring just as avidly as she had at him, and Serena and he knew, after Veronica, he would be introducing Gillian to sex.

He smiled as he pushed up, his cock buried all the way in Veronica. “Oh my, God,” she moaned.

She began to fuck back as Derek’s hips moved up and down. Soon, they were humping furiously, until Veronica too, crested her own orgasm crying out as she felt for the first time an orgasm from a man.

Derek smiled at Gillian as Veronica slumped to the floor beside him. He winked at Kate who winked back, with her jealousy gone was able to share this truly bizarre situation with her brother, as Gillian crawled over him.

It was Derek’s Summer of Love with his rotating harem of four girls; three who filled his days with sex, and the fourth who filled the nights with sex. Kate had accepted the idea that sharing Derek wasn’t so bad. Most often, the sex was group sex with all four girls present. They all learned from each other. Derek especially liked it when the four girls, the other girls had accepted that Kate wanted to learn as well and they all agreed, oral sex wasn’t incest since Kate never went ‘all the way’ so all four would practice blow jobs on him. It was exquisite torture trying to last as one girl after the other would suck and lick his cock. And it was accepted that he would get Kate off with his mouth as he recharged between bouts with the girls.

The girls started high school that year and all four soon found boys attracted to them. The confidence gained from their Summer of Love made them even more attractive to the boys. Derek too, had the inner confidence from the summer. Girls were attracted to him. Before the first week was out, Kate had come to him to inform him, with great trepidation, that she had a boyfriend. Derek could only laugh since he had a girl in his history class who wanted to go out with him on his first real date. Kate and Derek both laughed at how fate had treated them.

It wasn’t the last time they had sex. There were times during their high school years when they both were without a significant other and they helped each other release their sexual tension. But for the most part, they had a boyfriend or girlfriend to keep them occupied, just like typical teenagers.

Both found mates, married, had kids, and settled into typical middle class lives. They still loved each other, as brother and sister. Kate and Derek were just ordinary middle class people.

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