"Okay, girls," Jim said to Amy and Mandy one evening, "as promised, tonight I'm going to teach you about taking cocks up the ass. Are you guys ready?"

"Yes, daddy," Amy replied. "We washed our assholes inside and out."

"And we've had the butt plugs in for an hour!" said Mandy giggling.

"Okay, guys" Jim said, "take the plugs out!"

The girls took off their little panties, bent over, and reached behind. They gently eased the butt plugs out of their little anuses. Amy's pulled out with a "pop!" that caused them all to laugh. Jim handed them washcloths and sent them to the bathroom to tidy up.

While they were cleaning themselves, Jim laid out the tube of the lubricant he would use on the girls and some condoms.

When they returned, Jim said to them, "The next step is to tongue your little rosebuds. So, Amy: get on your elbows and knees."

Amy and Mandy started giggling and Amy said, "Yes, Daddy!" She positioned herself on the bed with her little rear up in the air. Amy's anus was light pink; Mandy's was a darker shade, almost purple.

Jim got down on all fours and put his face in Amy's asshole. He started to kiss her around the rim, teasing his pretty blonde daughter. Mandy knelt to the side, watching carefully as her sister received a rim job. Amy giggled as her father licked her asshole.

"Daddy, that tickles!"

Gripping her hips, Jim ran his tongue around Amy's pretty little anal opening. He licked the tiny ridges around and around. Then, he pressed the tip of his tongue onto her anus and pushed gently inward trying to tongue fuck her butthole.

"Ooh! That's hot!" Mandy exclaimed.

"Oh, yeah, Daddy! Stick your tongue in my asshole!" Amy crooned.

Jim bore down pushing her tender anal flesh with his greedy tongue. He then reached down and slipped a condom on his middle finger and coated it with lubricant.

"All right, Amy," he said, "I'm going to insert a lubricated finger into you to open up your tissues. After the butt plug, this shouldn't feel too tight."

Jim pressed his condom-covered finger into Amy's anus. His little daughter's rectum opened up as he slid his digit inside her.

"How is that, baby?" he asked her.

Amy's eyes were closed.

"That feels ... okay ..."she answered tentatively.

Jim slid his finger all the way into the pretty blonde's rectal opening. He started to move his finger in a little circle, around and around just inside her sphincter. Almost unconsciously, Amy pretty pink asshole (now reddening with the attention) started to open up, to gape.

"Wow! Amy, I can see inside!" Mandy said excitedly.

Amy opened her eyes and turned in the direction of her sister.

"Yeah? It's opening up?"

"Yes, honey," Jim said, "you're loosening up nicely." He then enquired, "Now, did that hurt at all?"

Wide-eyed now, Amy answered, "No, it didn't hurt at all! It felt okay!"

Mandy and Amy were smiling now.

"All right, Amy; it's time for me put my cock into your anus. Are you ready?"

"Yes, Daddy," Amy said, smiling. "I'm ready."

Jim looked at his other daughter.

"Mandy, will you help get me hard for your sister's butthole?"

Mandy sat right up and said, "Yes, Daddy! I'd love to help!"

She kissed Amy's cheek as she slid over to sit on the edge of the bed where Jim was standing, naked. Mandy reached out and took Jim's semi-hard cock in her hand and engulfed the bulbous head with her pretty little mouth, making a yummy sound as she did so.

"Mmm ..."

Mandy began sucking her adoptive father's cock, taking it down to the back of her throat and slurping it with her saliva. Mandy gave good head.

Jim looked down at the pretty 11 year old sucking his cock and admired her handiwork.

"Okay, Mandy," he said to her, "I think I'm ready darling."

Mandy took the hard cock out of her mouth and smiled up at him.

"Okay, Daddy!"

Amy looked behind her expectantly and a little anxiously.

Jim lubed his erect penis and squirted more into Amy's rear portal. Ready now, Jim placed his cock at entrance to his daughter's lovely gaping anus. He gently but firmly began to press the head into her opening. Mandy put her face near Amy's butt cheeks in order to get a close up look. Knowing that she would be next made her observation more than just idle curiosity.

Amy closed her eyes again and screwed her face up in anticipation of her father driving deeply into her rectum.

"Wow! That's tight, Amy!" Jim exclaimed, looking down at the thick, long cock opening the little girl's asshole. "How does it feel, honey?"

"Uhn ... it's okay ... keep going. I kinda like this feeling," she answered.

Jim positioned himself on top of the girl, while still in "doggy," and drove his cock deeper into Amy's anus. He was thrusting down into her rectum, now, and pushing deep into it. He moved slowly so as not to hurt her. Amy's eyes were closed and she was breathing deeply trying to stay loose. Jim started working it a little faster, moving more rapidly into the little girl's lubricated asshole.

"That's really deep!" Mandy exclaimed. "Do you feel okay, Amy?"

"Yes, Mandy," she said. "It feels good. You can pump me harder, Daddy."

Jim gripped Amy's hips and started pistoning faster and harder. His pretty daughter began to moan. Her soft anal tissues having slowly and gently been opened made it possible for the preteen to feel pleasure from the driving strokes of her father's penis. Part of what Amy felt was the indirect stimulation of her G spot.

"Daddy!" she gasped, "I think I'm going to cum!"

Perched above her on his feet and ramming his cock home from above, Jim was inspired to drill Amy until she climaxed. It was question of who would cum first as Amy's unexpected response thrilled her father and elevated his desire close to orgasm. Jim wanted, above all, to pleasure his sweet daughter. The sight of the girl's pretty pink asshole being fucked and the smell of her clean, lubricated rectum was driving Jim crazy! He struggled to hold back, hoping she would cum and allow him to release a flood of semen into her gaping anus. His patience was rewarded.

Amy cried out, "Oh, fuck! I'm cumming! Ahh ... ahh ... uhn!" The pretty child dropped her chest to the bed and squirmed with the pleasure of her first anal orgasm. Jim now felt free to shoot his load into her and father and daughter cummed together in their initial performance of anal sex.

Observing all this, Mandy was amazed and wholly turned on. She loved Amy and her dad and was pleased to see them both climax. She was also thrilled by the thought that the same would happen to her once Jim recovered. Mandy knew her mother enjoyed anal intercourse and so felt confident that she would, too. Gloria and Jim explained to the girls that anal sex could hurt if not done properly. If done right, however, a climax such as the one now wracking Amy's nubile body could be the result.

Jim withdrew his penis and rolled over next to Amy, who had collapsed after cumming. Mandy brushed Amy's hair off the side of her face and kissing her said, "Wow, Amy; that was ... amazing! How do you feel?"

"Oh, Mandy ... that was great!" Amy turned to her left and said, "Daddy, that was terrific! Thanks for doing that!"

Amy felt liberated by starting to learn how to accept a phallus in her "back door." Amy wanted to build on her experience and turn it into a skill.

"You're welcome, honey. You did very well. Mandy, as soon as I recover, we'll start working on getting you used to anal sex. That is, if you still want to."

"Oh, yes, Daddy!" Mandy said enthusiastically. "I want to learn it, too! I'll try to do as well as Amy."

Amy kissed Mandy's cheek and said, "You'll be great ... you always are!"

Mandy blushed slightly at the compliment. Jim smiled at the both of them, pleased at how close they had become in such a short time.

"Okay, Mandy," Jim said. "It's your turn!"

It had been almost a half hour since Amy had been drilled in the ass by her father. She had done very well for her first. That was due to her enthusiasm for anal and Jim's careful preparation.

Now, Mandy would lose her anal virginity. She was ready to go. The pretty little brunette with the delicate features and seemingly boundless energy when it came to sex stripped off her T-shirt and shorts. Mandy's 11 year old body was simply breathtaking. She was a pedophile's dream: smooth, pale skin, fine dark brown hair, slim hips, and a flat chest with the smallest suggestion of tits. When she stood up, the lovely slit of her labia was still unobscured by pubic hair.

Jim was already hard for the little girl. Amy stood by ready to give him head, though it was clear he didn't need it for fucking his youngest daughter. Mandy turned him on tremendously just as she did the first time he was with her. She was a sexy ten year old who gave him the best blow job he'd ever gotten.

Amy jumped in and started to prepare her sister for ass fucking. The cute blonde positioned her sister on her hands and knees and then stuck her tongue into the darling girl's anus. Amy kissed and licked her sister's tiny purple asshole.

"Oh, Amy!" Mandy sighed. "That feels soooo good!"

As Mandy started to relax, Amy started gently inserting an index finger through her sister's sphincter and down into her rectum. The butt plug had done its work; Mandy was opening up to Amy touch. Amy was enjoying the wrinkled flesh on the tip of her tongue. Mandy's going to be good at this, Amy said to herself; I can tell.

Jim, meanwhile, was stroking his boner; getting it ready to plunder the sweet little girl's back door. Two beautiful nymphets in one night! he thought, and both anal! Jim knew how lucky he was to have access to the pair of underage whores. He never took the two children for granted. He always let them know how much he loved them.

Amy ceased rimming Mandy and looked up at her father. Jim took it as a signal to begin the careful process of preparing the child to take objects in her rectum. He spent several minutes finger fucking her with a lubricated condom as he did Amy.

Gauging the progress of her father's preparation, Amy tapped him on the shoulder.

"I think she's ready, daddy."

"Okay; are you ready, Mandy?" he inquired.

"Yes, daddy," she answered.

"All right, honey," he said as he prepared to mount her, "here I come!"

Jim pressed the head of his larger than average penis into the slightly gaped anus of the pretty 11 year old. Mandy was an accomplished slut. She had been turning tricks with her mother, Gloria, since she was nine years old. This, however, was going to be new for her.

Amy and Mandy had explored each other's assholes with their tongues and fingers and small toys. Gloria started rimming her daughter even before she was fucked for the first time, so Mandy was used to "backdoor" attention. Jim's cock promised to take her to new sexual heights ... or lows, depending upon how you thought about little girls being sodomized by their fathers/step-fathers.

"Ssssh ..." Mandy's sharp intake of breath reflected the effect of having her tiny sphincter stretched by Jim's six-inch diameter erection. He was moving slowly but little girl was definitely feeling it.

"Oh!" she cried softly, "that's big, daddy."

Jim concentrated on driving down into the puckered opening and ultimately into her rectum. The flesh, liberally lubricated, seemed to open up easily enough but Jim knew Mandy would be sore tomorrow! Still, she had to get used to it and, after all, her big sister did it. Mandy gritted her teeth and tried to relax her anal muscles.

"Wow, Mandy; you're doing really well!" exclaimed Amy. Turning to her father, she said,

"How does it feel, daddy?"

"Well, Amy, it's really tight." Addressing his youngest daughter he said,

"Mandy, I'm going to start moving in and out, honey. Tell me if it hurts too much."

Mandy's face was to the mattress. She was concentrating on receiving the thick cock in her butthole, trying to adapt to the discomfort she was feeling. She knew she needed to do this. Her mom was depending on Mandy to help her and Amy service their clients anally. She had to "hold up her end," so to speak.

Amy put her face close to where her father's boner was drilling little Mandy. She took in the smell of lubricant mixed with her sister's ass flesh. She could hear the squishing sound the cock made as it went in and out of the little brunette's rectum. She was able to see what it must have liked like when her father had fucked her own ass just a half hour before.

"Are you doing all right, honey?" Jim inquired as he plundered the Mandy's back door.

"I'm okay, daddy," the little girl said, bravely. "Keep going."

As Jim started fucking her faster, Mandy was surprised to feel herself loosen up to the point where it didn't hurt at all. In fact, it was starting to feel good! Jim was driving quickly now into her rear portal. Mandy's petite figure was shaking with each hard thrust into her anus.

Amy put her face to the mattress near Mandy's and said,

"You're doing great, Mandy! It looks fantastic!" she said, excitedly.

Fully attuned to the rhythms of Jim's fucking, Mandy lifted her head and turned to look over her right shoulder at her step-father. Breathing hard, she said,

"Daddy ... are you ready to cum ... inside me?' It feels like ... you're getting ready ... to shoot!"

"Yes, Mandy," Jim gasped. He was moving much more rapidly now, building to his climax. He reached the point where he could hold back no longer and cried,

"Okay, girls; I'm cumming!"

He pulled Mandy's hips back toward him almost lifting the child off the bed. Mandy screamed as he pushed to the deepest part of her rectum. His bone blast was both powerful and copious enough to find its way up into the little girl's colon!

When he withdrew his cock, Amy looked down into the gaping, reddened orifice and saw the milky white cum bubbling to the top. She carefully dipped her entire index finger into the creamy mess and pulled it out. Amy studied it for long moment before sticking her finger in her mouth and licking it clean, holding her father's gaze as she did so.

Little Mandy had dropped her hips to the bed and was breathing hard. Her lower back was sweaty with the exertion and the trepidation with she received her first anal fuck. Amy was stroking her hair and kissing her head. Jim bent down and kissed the girl's butt cheeks.

"Mandy, you did very well!" he said to her.

The sweet little minx wearily turned on her side and said, weakly, with a half-smile, "Thanks, daddy!"

Jim had dried off from the shower and was sitting on his and Gloria's bed when Amy knocked on the door.

"Daddy," she said, "can I come in?"

"Sure, Amy; what is it, dear?" Jim patted the space next to him on the bed and Amy sat down.

"Well, Daddy ... I really liked being fucked in the ass today. Thanks for teaching us how to take it."

Jim smiled and leaned toward Amy. He kissed her forehead and said, "Honey, it was my pleasure."

Amy smiled and snuggled up closer to her dad, who put his arm around her and hugged her gently.

"Daddy ..."

"Yes, Amy?"

"Will you fuck me in the ass every day for the next week so that I can get used to it?"

Jim looked at her in surprise.

"Well, darling, if you really want me to, I'll be glad to do it."

He regarded her momentarily and then said,

"You really liked it that much?"

"Yes, Daddy, I did. And I want to be more like Gloria. She's really good at sex. She does anal a lot and I want to be just like her." She looked at her dad earnestly.

Jim smiled at her.

"I think your step-mother would be very pleased to know that."

"And I think it would be really cool to be able to do it whenever necessary."

Amy was thoughtful for a moment. Jim thought that she looked as if there was something else she wanted to say. They sat in silence for moment before Amy said,

"Daddy, because I want to be fucked in mouth, pussy, and asshole, does that make me too much of a slut? I really like sex but I don't want it to become too big a thing. Do you know what I mean?"

Jim looked at his daughter. She had a come a long way in the last eighteen months. She had gone from virginity to prostitution and had been engaged in incest. That was a lot for a twelve- almost thirteen-year old. Jim sought to reassure his daughter and to allay her fears.

Putting his arm around her, Jim said,

"Amy, sweetheart, I think your interest in sex is healthy right now. You don't seem to suffer from the inhibitions that plague most of us. At the same time, though, I think you understand the importance of being safe from pregnancy and STDs. That's a sign of maturity and I'm very proud of you."

Jim kissed the top of her head and hugged her shoulders. Amy smiled.

"Thanks, Daddy."

"The other things to think about are how you'll get on with kids of your own generation when you want to start having sex outside our current circle: Gloria, Mandy, me, and the people at the orgy." Jim made reference to the twice-monthly daddy-daughter sex-fests that they had started to attend.

Amy said, "Yeah, I know. I can't talk to any of the kids in school about what I'm doing. But that's okay; I really like having sex with adults and, of course, with Mandy and the other girls."

Amy giggled and said quietly, "I really like girls a lot, daddy! I love being fucked by guys, but I also like pussy."

"Amy," Jim said, "Don't feel as though you have to make a decision. I think that's artificial. I subscribe to the academic viewpoint that says we are born sexual; not heterosexual or homosexual until society intrudes. Now, some of us are definitely more oriented toward one or the other but I don't think that hard and fast rules apply here so much."

"I think you're right, Daddy. I don't feel as if I have to make a choice; at least not right now. I was just a little worried, I guess."

"You'll have time, darling. No need to rush these things. And as far as being too much of a slut, what does that really mean? That's somebody else's opinion about your sexuality. I think you're doing fine as long as you don't hurt yourself or someone else."

Amy smiled and kissed her father's cheek.

"Thanks, Daddy. I knew you would know about these things. I feel better now."

"You're welcome, my little sweetheart," he said as he held her close and rocked her.