I walked into my 12 year old sister's bedroom to see if she wanted to play around before dad came home from work. I walked through the doorway and found her sitting at the computer looking at her favorite porn sites.

"Don't you ever get tired of looking at those places?" I laughed.

"No, I'm always looking for new ways to do it with you."

I stood next to her looking at the monitor. She was watching a video of a girl sucking a guy's cock. I watched as she took it all into her mouth and down her throat.

"Jesus, look at her go. She took the whole thing in her mouth."

"No kidding, look at her throat bulge out from his cock." Erin said in amazement.

We watched in silence for a few minutes before she spoke again.

"Do you think I could take all of you Billy?"

"I don't know, want to try?" I asked hopefully.

She glanced over at her clock on the night stand. She said that we didn't have time because dad would be home any time now. She told me that she would try tonight when dad went bowling. I gave her small breast a quick squeeze then turned towards the door. She threw a pillow at me telling me that I would pay for that later. We both laughed as I closed her door.

I walked down the hallway of our trailer. It was a nice double wide and it was located in one of the best parks in town. Mom fixed it up just the way she liked before she was diagnosed with cancer. It didn't take long for her to pass away from the disease. It's been two years since she has been gone. I'm 13 almost 14 and Erin just turned 12. Dad works hard at the mill to provide for us. Erin and I take care of the trailer and yard for dad so he can relax when he gets home. Money is kind of tight but we don't go without many things we really want.

Dad walked in the door just as I finished setting the table. Erin had come out of her room begin cooking supper. I took a beer out of the refrigerator and opened it before I handed it to dad. He took it ruffling my hair in appreciation. He took a huge swallow from the bottle then asked what we've been up to.

"Oh just looking at the porn sites on the computer." Erin said bluntly.

He looked at her then at me then he busted out laughing loudly. He laughed so hard he coughed up his beer that he just swallowed.

"Looking at porn, that's pretty good." He laughed even harder.

I glared at my younger sister thinking that she lost her mind. She smiled back at me giving me a wink to go along with it. I just shook my head and looked at dad still giggling. She said it would be about another 20 minutes before the spaghetti was done.

"Then I'll go take a shower now." dad said still chuckling about the porn comment.

When he left the room I asked my little sister if she was totally stupid or what. She giggled telling me that dad would never think that we would do something like that. I thought about it for a few moments then realized she was right. Erin and I have never given dad a reason to think we were nothing but good kids. He would shit a brick if he knew that we have been having sex with each other for the last six months. It started when she caught me jerking off and threatened to tell dad if I didn't teach her about sex. At first I was pissed at her but once my cock was buried in her hairless little pussy I forgot all about being mad. We've learned a lot about sex on the internet and tired a lot of things we've seen on the porn sites. I guess the worst thing we've done is the rimming. Erin saw it and wanted to try. It wasn't bad and I loved it when she licked my ass hole but I wasn't crazy about doing it to her. I haven't done it very often to her but when she sucks my cock she always gives my rear hole a few licks. Thankfully she hasn't started her periods yet so no fear of pregnancies. We have been trying to think of a way to get dad to put her on the pill but haven't come up with a good excuse yet.

I watched Erin drain the noodles and rinse them off. She told me to tell dad that supper was ready and he had better hurry up if he wanted to get to the bowling alley in time for the league to begin. Just as I got up to do what she wanted, dad walked into the kitchen.

We sat at the table and talked about each of our days. Dad wanted to know all about what we did at school and how we were doing. Both of us were A and B students. I played basketball and Erin played volleyball in an after school league.

"Daddy, when are you going to start to date?" Erin asked when there was a lull in the conversation.

"I don't need to date, no one can take your mom's place."

"Yes you do." she said. "You have needs."

"And I suppose you learned that from the porn sites?" he said laughing loudly again.

"I'm serious daddy, you need to meet someone." she said in exasperation.

"You guys don't have to worry about me or my love life, end of discussion." he said sternly not laughing anymore.

Erin and I knew enough to drop the subject. I looked at the clock telling dad that he had better hurry. I glanced at his watched, cussed softly then got up heading for the door.

"The only thing you two need to worry about is what you want for Christmas." he said to us as he walked out the door.

"Come on, help me in the kitchen then I will see just how much of you I can get in my mouth."

My cock immediately grew to its 5 inches and tented out the front of my pants. My sister saw this and laughed. She gave my hard on a quick squeeze through my pants before starting the water in the sink. She washed and I dried. It didn't take us long at all to clean the kitchen.

"Dad won't be home for about 5 hours, what should we do?" she said as she smiled at me.

"Come on sis, let's go to my room."

"Let's shower together first, okay?" she suggested.

She grabbed my hand leading me to the bathroom in dad's room with the big shower stall. She quickly shed her clothing stepping into the shower to turn the water on. I got undressed and stepped in after her. She was standing under the spray facing me with her eyes closed. I looked at my younger sister's body and admired the view. She has long straight brown hair that hangs down to the middle of her back. When her eyes are open they are a beautiful shade of green. Her lips have a natural reddish color to them. They are lush and full for a girl as young as she is. My gaze moved lower and stopped on her small orange sized tits. Her nipples were like hard little stones and her areolas were nice and pink and the size of quarters. I moved my eyes lower to her small hairless pussy. Her pussy lips were just beginning to extend out and her clit was already visible. She loves it when I suck her clit just like she sucks my cock, with sucking and licking combined. She turned around and I got a great view of her tight bubble shaped butt. Her two globes of ass cheeks were nice and tight with a great shape to them. I couldn't see her little brown hole but I knew well enough what it looked like. We've even talked about having anal sex but haven't done it yet.

"Are you enjoying the view big brother?" She asked looking over her shoulder.

"You know I like looking at you, you're beautiful."

"Thanks Billy, now let's get washed up so we can have some fun before dad gets home."

She lathered up her hands moving them all over my chest and arms. She told me to turn around and rubbed the suds onto my shoulders and back. She used the soap again to lather her hands once more then dropped to her knees washing my ass cheeks and down my butt crack. She told me to turn around. She took my hard cock in her soapy hands running them up and down my rock hard dick. I groaned as she slid one hand down to my balls massaging my nuts gently with her hand. She held my cock to the spray rinsing off the soap then slipping it into her hot mouth. She slid her mouth along my cock licking the head and my pee hole. I could feel the tip of her tongue pushing against the tiny hole getting the few drops of precum that was oozing from it.

She let my cock fall from her mouth then stood up. She told me to get busy and wash her body for her. I gladly took the soap and began to wash her preteen body for her. I didn't waste any time getting to her small tits rubbing my soapy hands all over her little mounds. I pulled and pinched her tiny hard nipples making her groan loudly. She loved to have her nipples played with roughly. I moved one hand down to her bald pussy slipping a finger into her cunt crevice. I moved it up to her clit pinching it lightly between my two fingers. Her head tilted back and a low loud moan escaped her lips.

"Oh jeez Billy, lets get out and get on the bed." she panted.

We both rinsed off our bodies then stepped out of the shower stall. We wrapped ourselves in our towels then headed to my room. I let my towel fall as soon as I got into my room. She slapped my bare ass with her and letting her towel fall next to the bed. She climbed onto my bed spreading her legs wide for me. I crawled between her legs placing my lips on her hot cunt. I pushed my tongue into her hot wet hole immediately. She grabbed my head by the hair pulling me closer to her hairless pussy.

"Oh yeah Billy lick me, lick me all over." she begged. "Lick my butt too, please you know how much I like that."

I lifted my face from her pussy telling her that I don't really like doing that. She begged me telling me that she would put my entire cock in her mouth no matter what. I told her that if she did that for me then I would lick her butt but not until she could take all of me in her mouth. She rolled over telling me to lie down on the bed. I quickly obeyed my little sister spreading my legs. She moved between them taking hold of my cock in her hands. She pumped my cock a few times then lowered her lips over the head. I felt her tongue licking all around the crown of it and pushing against the pee hole again. She took her mouth off my cock using her tongue to lick down the length of my cock to my ball sack. She sucked gently on my nuts taking one then the other into her young mouth. She ran her tongue down my sack to my butt hole. I could feel the tip of her tongue flicking across my puckered brown hole. I sighed in contentment as she rimmed my ass. My cock was oozing precum and she moved her lips to the tip of it to catch it all in her mouth. She lowered her mouth down over my cock again.

"Suck it all Erin, put it all in your mouth."

She took a breath then moved down lower. I could hear her gag and pull my cock back out a little. She tried again with the same results. I told her that she should stop if she couldn't do it. I told her that it wasn't a big deal if she couldn't do that. She told me that she wanted to try one more time before she gave up. She knelt up straighter taking my cock in her mouth again. She slowly pushed my meat into her mouth. When she got to where she gagged before she hesitated. She looked up at me before she pushed more of my cock slowly, very slowly into her mouth. I could feel her gag slightly then a tightness around the head of my cock as it slid into her throat. I groaned out telling her that I feel fantastic. She swallowed and I felt her throat ripple along my cock head. She pulled me out of her mouth.

"I did it Billy, I took it all the way in." she said excitedly. "It went right down my throat."

"How did it feel, did it feel good?" she wanted to know.

"Great, it felt really goof when you swallowed. I could feel your throat gripping me."

"Now it's your turn and remember what you promised." she said.

"Okay but if I do it will you let me cum when you have my dick all the way inside your mouth?" I bargained.

"I suppose if you want to."

"Okay, lie on your back with your legs bent up." I instructed.

She rolled over pulling her knees to her chest. She spread them slightly allowing me to look into her moist slit. I bent my head down to her placing my lips over her entire bald cunt. I ran my tongue up her wet slit until I felt her hard clit. I sucked it into my mouth flicking at it with my tongue. She jerked a little as I chewed gently on her hard clit. I ran my tongue back down her wet crack. When it was coated with her cunt juice I moved it down along her butt crack. I teased and tickled her little rosebud with the tip of my tongue. She grunted her appreciation as I licked all around the puckered hole. I could taste a slight tart pungent flavor that I didn't really enjoy but she liked me doing it and I liked making her happy so I put up with it. She reached her hands down spreading her butt cheeks apart. I stiffened my tongue and pushed at her dark hole a little harder. She moaned loudly as the tip of my tongue wormed its way into her bowels. He pussy was oozing juice and it was running down to her ass hole. I could taste her pussy as I reamed out her ass with my tongue.

"OOHHHHHH Billy, OOHHHHH yeah I love that." She sighed heavily.

I moved my lips back to her hairless snatch and began to give it a good tongue washing. She bucked up against my face as I ate her young cunt. I plunged my tongue into her hot hole tasting her sweetness. I licked up to her clit and moved a finger to her hot wet hole. I slowly pushed a finger into her pussy. She groaned in pleasure and humped up at me. Soon she was trembling which I learned was her approach to a good orgasm. She began panting and calling my name. Suddenly she stiffened and poured out her cunt juice. I quickly moved my mouth down to catch all of the sweet nectar.

"AAAAAAAAHHHHHHHHHHHHHHHHHHHHHH, Eat me Billy, OOHHHHH Eat my cunt." she cried as she gushed out her juice.

I lapped it up as fast as I could plunging my tongue in and out of her quivering hole. I sucked her dry and didn't stop until she pushed my head away from her. I moved up next to her taking her face in my hands and kissing her softly. Her tongue worked its way into my mouth tasting herself as she did. We hugged and kissed until she recovered from her orgasm.

"Are you ready for your turn?" she asked.

I pointed to my cock that was standing straight up telling her that I was more than ready. She moved down taking my cock into her warm mouth and immediately sunk her lips all the way down. I felt the head of my cock slide into her throat. The tightness was almost as good as sticking it in her pussy. She swallowed over and over again making me cry out in pleasure. I told her that I would last long if she kept that up. Over and over she swallowed trying to make me cum.

"AAAAWWWWWWW rub my balls to Erin, rub them like I like." I asked her.

She used her free hand to massage my nuts nice and gentle like I like. I could feel them begin to tighten up in their sack and knew that I would soon be shooting my cum. She kept my cock in her throat breathing through her nose.

"Oh shit I'm cumming Erin, I'm cumming, OOOOOOOOHHHHHHHHH."

I felt the cum rush up my cock and explode into her mouth. The head of my cock was in her throat and the cum went right down. She swallowed fast and hard as I poured my sticky cum into her throat. Each time she swallowed made me pump another shot into her. I almost blacked out from the intense feeling. She finally pulled my cock out of her throat and left just the head of it inside her mouth. Her tongue was working fast on the tip of my cock coaxing all the cum out of my piss hole. I finally had to shove her away as it was just too sensitive to take anymore. She sat back smiling at me.

"How was it?"

"Wow Erin, that was the best I ever felt. Honest to God I thought I was going to pass out." I told her.

"It felt different when you shoot your stuff right down my throat like that. I don't get to taste it like I do when you shoot in my mouth."

She crawled back up by me kissing me on the lips so I could taste my own cum. We've been doing that since the beginning and now enjoy tasting ourselves when we are finished. We kissed and cuddled for a few minutes until she pushed me away.

"You know Christmas is just a few weeks away and we haven't even got dad anything." she said.

"Yeah I know, what do you think we should get him?"

"How much money do you have? I only have about 5 bucks." she said sadly.

"I have even less than that."

We lay in silence thinking of what we were going to do. Suddenly she sat up with a huge grin on her face.

"I got it. I know just what to do for daddy." she shrieked in excitement.

I looked at her waiting for an explanation. She told me that she would tell me in a few days when she figures all the details out. I asked her how much this was going to cost and she told me that it wouldn't cost us a dime. I gave her a blank look and she told me that I would love it.

"You want to mess around some more?" she asked.

"Nah, I shot so much before I don't think I can do again."

She said she felt the same way. We took another shower together. This time we washed ourselves. When we were done we headed to the family room to watch TV. Erin was quiet the rest of the night. Every time I asked her if she was okay, she just told me that she was thinking and planning daddy's Christmas gift.

We sat up until dad got home from his league bowling. We sat for a while talking before he told us to go to bed. Because the trailer only had two bedrooms, Erin and I share the larger of the two. We have a king size bed so we have plenty of room. I kissed her good night before rolling over. I fell asleep in record time that night.

The following week I kept asking Erin what her big gift for dad was but all she told me was that she was working out the details. Finally two days before Christmas when we were alone she let me in on the big surprise for dad.

"You know how we always open gifts early Christmas morning?" she asked.

"Yeah."

"Okay don't say anything until I'm all done talking, okay promise."

"Okay I promise." I told her placing my hand over my heart.

"Christmas Eve after daddy goes to sleep we are going to sneak into his room and tie his hands to the top of the bed and his feet to the bottom."

"Huh, why would we do that?"

"Shut up, you promised you wouldn't say anything until I was done."

"Sorry."

"After we tie him up we make him feel good."

I sat looking at her trying to figure out what she was talking about. She just stared back at me.

"Well, now you can talk." she said impatiently.

"I don't get it. How can we make him feel good when he's tied up?"

"Oh, Oh, OOOOHHHHHHHHH wait a minute I know what you're saying now." I said loudly.

"ARE YOU NUTS!!" I shouted. "He'll kill us as soon as we untie him."

"I don't think so, it's been so long I bet he will enjoy it way to much."

"How can we tie him up without waking him up?" I asked.

"Come on, you know he sleeps like he is dead."

"You're crazy. He will hate us for doing that with him."

"I don't think so, I think he will like it but if I'm wrong we can always stop."

"I don't know Erin, we could get into so much trouble with dad if he gets mad." I said with a worried tone in my voice. "Besides, if you make him feel good, what do I give him?"

"You always wondered what I feel like when you put your cock in me, now you can feel dads in your butt." she giggled lightly. "Plus you can suck his dick, you know how much you like it when I do that for you."

My cock began to grow thinking of sucking on my dad's hard cock. I never did that before but I always wondered what it would be like to have a dick in my mouth. I wasn't to sure about putting it in my butt though. I figured I would wait and see what happens and how far it goes. Erin looked down at my cock laughing telling me that she could see I was beginning to like the idea. I admitted it could be fun if dad didn't kill us first.

We talked about our plan off and on during the last two days. Finally the big day arrived. Dad had to work a half day on Christmas Eve so he wouldn't be home until about 2 in the afternoon. When he left that morning Erin and I made sure we had everything we needed for tonight. She practiced tying me up to the headboard to be sure she could do it securely. I was assigned to tying his legs to the footboard and knew that my knots wouldn't come undone. We hid the neckties that we were using for the ties under the bed. Erin placed a tube of lube that she found in the medicine closet in dad's nightstand in case I decided to let him in my butt. We took one more look around his bedroom then walked into the kitchen to fix lunch.

When the kitchen was cleaned up after lunch we watched TV until dad came home about 2 hours later. He told us that he was taking us out for a nice dinner tonight. He told us to get changed and hurry. We ran off to our bedroom to change into our Sunday clothes.

Dad took us to a cool steakhouse. He let us order anything we wanted. We both ordered a steak. I got fries while Erin took a baked potato. Dad had baked Salmon and potatoes.

"What's the occasion for this dinner dad?" I asked over dessert.

"Well now that you asked, I got a nice little promotion and raise this week. I didn't want to say anything until it was official."

"Cool dad, I'm happy for you." I told him.

"Me too daddy." Erin chimed in.

The waitress brought the check. Dad paid the bill and led us out of the crowded restaurant. We got into the car for the short ride home. Dad told us that he was going to take a shower and get ready for bed. He said that he had a really hard day at work and wanted to get some extra sleep. I looked over at Erin frowning. She shook her head slightly at me. When dad left the room she came over to sit next to me.

"This is perfect. We will let him sleep about three hours, by that time he will really be in a deep sleep and we can tie him up."

"Won't he be to tired to do anything even if he wants to?"

"Are you ever to tired?" She asked me with a smile.

"I guess not." I laughed at her.

After dad finished with his shower he came and told us good night. He told us not to stay up to late because Santa wouldn't come. We laughed telling him that we were too old to believe in that stuff. He told us that a person is never too old to believe in Santa. He shuffled off down the hall to his bedroom.

Erin and I watched a movie giving dad enough time to fall into his usual deep sleep. She looked over at me after the movie and asked if I was ready to carry out our plan. I shrugged my shoulders and told her that I hope we didn't end up with dad hating us for doing this.

We walked down the hall pausing in front of his closed bedroom door. Erin quietly opened the door and stepped inside. I followed silently behind her.

"Daddy, daddy are you awake?" she whispered.

"Daddy, can you hear me?" she said louder this time.

She went to the side of the bed and shook his shoulders lightly. He moaned in his sleep but never opened his eyes. She motioned for me to come over by her. I moved next to my younger sister and looked down at dad. I gave a small shudder just thinking of what we were about to do. Erin bent down and grabbed the neckties we had hidden under the bed. She gave me two of them to tie his legs to the footboard. I slipped one under his left leg then once around his ankle.

"Wait, we have to take off his clothes first." she whispered to me.

I nodded my head and pulled the bottom of his PJ's down his leg. He didn't wear underwear under his pajamas. I looked at my dad's limp cock lying against his leg. I felt my own dick begin to stir a little with excitement. Erin in the mean time began to unbutton his top. She had a harder time trying to get his top off then decided that it was okay just to leave it open exposing his chest and stomach areas.

I resumed tying his legs to the bedpost and soon had his legs securely fastened. With him spread eagle like that I could see his hairy nut sack lying under his soft cock. He was breathing evenly and hadn't moved at all since we started.

"I wonder how big his cock gets when it's hard?" Erin whispered when she finally had his arms tied to the headboard.

"I don't know but I bet it's a lot bigger than mine." I whispered back.

She moved down to the middle of the bed. She slowly reached her hand out touching dad's cock. We both looked at his face to see if there was a reaction and there wasn't any. She smiled at me as she took his limp cock in her hand and gave it a few gentle squeezes. She whispered over to me asking me if I wanted to hold it for a while. I shook my head and whispered back that I was fine just watching her. She bent her head down and licked the head of dad's cock with the tip of her tongue. Dad sighed heavily in his sleep and instinctively opened his legs further. She giggled softly as she put her mouth on his cock. I watched as my little sister pushed our dad's cock into her mouth. She opened her mouth so I could see that she was licking all around his spongy head. Dad let out a soft moan in his sleep. She pushed her mouth down on his cock and it began to grow slowly at first but soon it was extended to its full 8 inches. She couldn't even get close to putting it all into her mouth. She ran her tongue up and down the stiff shaft and sucked on his cock head every so often.

"Come on Billy, you try it now. You lick and suck it for a while."

I didn't know what to do. I had never touched another person's cock before let alone suck one. My mouth felt dry and my hands were sweating. I moved next to my sister and reached a shaking hand out to grip dad's hard cock. I felt the firmness of it and the underlying softness also. I could feel it pulse in my hand as I slowly slid my hand up and down on his rigid cock. I ran a finger over the tip of it making him groan in his sleep.

"Suck it Billy, go on suck it." Erin urged me.

I looked up at dad to be sure he was still sleeping. I bent my head down and touched his cock head with the tip of my tongue. I didn't taste anything bad so I licked all over his soft head then ran my tongue down to his base. I even licked his hairy nut sack a few times. I licked back up the shaft to the tip. I saw a pearly drop of his precum oozing form his pee hole. I dipped my tongue into it picking the wet drop up with my tongue. I tasted my dad for the first time and decided that I liked it. I put his cock in my mouth and pushed it in. I sucked gently on his hard cock enjoying the feeling of his meat in my mouth. I bobbed up and down for a few moments before I felt Erin tapping my shoulder.

"What's the matter." I said quietly looking at dad to be sure he was still sleeping.

"Nothing, I want to have a turn too."

"Let's do it together." I suggested.

We both used our tongues to lick his shaft. When we licked up to his cock head we kissed and sucked each others tongues for a short while before going back to dad. Erin would suck his cock into her mouth for a few minutes while I licked his balls then we would change positions. We were both concentrating on pleasing dad and enjoying it too that we didn't see that dad had woke up.

"What, what the, WHAT THE FUCK!" he screamed.

I happened to be the one with his cock in my mouth when he shouted. I quickly let his cock fall out of my mouth and sat up.

"Merry Christmas daddy." Erin exclaimed cheerily.

"What the hell are you kids think your doing? Untie me right now." he said loudly as he pulled against the ties.

Erin and I talked about what we would do if dad woke up mad. We had agreed that she would talk calmly to him while I sucked on his cock to see if he would forget about being so mad.

"Daddy we just want to help you feel good like you use to with mom." she said softly and sweetly.

"AAAHHHHHHHH Billy don't do that, STOP, OOHHHHHHH stop you shouldn't." he groaned

"Daddy we are only doing this because we love you so much, this is our Christmas present to you. Just relax and enjoy it please let us do this for you." she explained.

"AAAWWWWWW Billy, OOOOHHHHHHH shit this is so wrong in so many ways."

Erin moved down and took dad's cock from my mouth. We both began to lick on it. I circled his cock head with my tongue while she licked down to his balls. As she came back up, I moved down to take her place.

"Oh God I forgot how good that feels." dad cried out.

"Your cock tastes so good daddy. We want to taste your cum too." she told him.

He moaned loudly when he heard that. His cock twitched in my mouth as I sucked gently on him. Erin moved up to his face and kissed him on the lips. I sucked his cock head while keeping my eyes on my sister. I could see her slipping her tongue into his mouth. She let out a sigh as he sucked on her tongue.

I used a free hand to massage dad's large nut sack. I rolled his balls around in the palm of my hand. I licked down his shaft taking one of his balls into my mouth. I couldn't believe that I was doing this to my dad. I had never touched another person's cock before and now I was sucking one waiting for him to shoot his cream into my mouth.

"OOOHHHHHHH you better move Billy, I'm almost ready to shoot." he warned.

I answered him by taking his cock back into my mouth sucking harder on it. Erin moved up so she was squatting over dad's face. I looked up and saw him staring at her hairless little slit as she lowered herself down onto his lips. She moaned out when his tongue began to work on her preteen pussy. I knew it wouldn't be long for her because she loves to have her cunt licked.

I heard a muffle cry from dad just before his cock spewed out its load into my mouth. The first blast filled my mouth to almost overfilling. I quickly swallowed to surprised to even taste his cum. The second blast was almost as strong but this time I had a chance to taste his salty musky juice. I rolled my tongue through the slimy cum before I let it slide down my throat. He pumped another five ropes of his cum into my mouth before he ended with a few dribbles from his hole. I licked his cock clean letting it go soft in my mouth. All the time I was gulping down his hot cum I could hear him screaming into Erin's pussy. The vibrations of his screams in her bald little pussy must have been too much for her and she cried out her own orgasm. She ground her pussy on dad's face as she coated it with her preteen cunt juice.

"Let's change places Billy." she said.

I moved up by dad's head looking at him. I didn't know if he wanted to suck my cock or not. I saw that Erin already had dad's cock in her mouth.

"Come on up here Billy, I haven't sucked a cock since high school." he said.

I moved up so my cock was resting on his lips. He opened his mouth inviting me to push it in. I let my cock slide into his warm mouth. He closed his lips around my dick as I pushed it all the way in. His tongue was working hard licking all over the soft head of my cock. He shocked me by taking my entire cock in his mouth then sticking out his tongue and licking my balls. I let out a loud moan when he did that. I could feel my balls tighten in their sack.

"Lean forward Billy, I want to make you feel even better." dad instructed me.

I leaned forward bring my butt off the bed. He reached his hand down to ass. He rubbed my butt cheeks a few moments before he ran his finger down the crack of my ass. He asked me to reach back and spread my cheeks apart. I did as he wanted and groaned loudly when his finger circled around my puckered brown hole.

"AAAHHHHHH dad, OOHHHHHHHH that feels so good."

"I can't hold it much longer dad." I warned him.

His answer to that was to push his finger deep into my ass hole. He wiggled it all around tickling my young prostate gland. I groaned out loudly feeling my cock grow even bigger. My cock was all the way in his mouth getting sucked and licked non stop.

"AAAWWWWWWWW dad, here it comes, OOHHHHHH I'm cumming dad, I'm cumming." I cried out.

I grunted as I shot the first blast of my hot sticky cum into his mouth. Shot after shot of my hot seed flowed into his mouth as his tongue flicked across my cock head. He swallowed every drop of my cum before letting my cock slip from his mouth. He slowly pulled his finger from my ass.

I smiled down at him as he licked his lips clean of my cum. He told me that I had a nice size cock for a boy my age and that I tasted pretty good too.

I felt so good I almost forgot about my little sister who was still busy sucking dad's cock. She pulled his cock from her mouth and said it was time. I knew what she was going to do but dad didn't have a clue. I moved off away from his head so he could watch what was about to happen.

Erin moved up so she was squatting over his cock. I held dad's hard cock in my hand pointing it directly at my sister's 12 year old hairless pussy. She lowered herself down until his cock was just touching her pussy. I moved dad's cock along her moist slit coating it with her cunt juice.

"He is so much bigger than you." she whispered to me.

"If it hurts to bad you can always stop." I told her in a soft voice.

"Hold it steady Billy." she said. "here goes nothing."

She let herself down a little as her pussy began to open up to accept dad's big hard cock. I kept my eyes glued to the spot where their bodies met. Dad's cock was bending trying to get into such a tight hole. Erin suddenly hissed loudly as his cock popped into her preteen cunt.

"AAAAAHHHHHHH Oh my God, OOOOOHHHHHHH its so big daddy, OOOOHHH it's so big." she sighed.

She paused to get use to the size of his cock inside her. Once the discomfort eased some she began to lower herself down. I could see dad's cock disappear more and more into her little pussy.

"Ugh, Ugh, Ugh, OOHHHHHHH so big, OOHHHH I want it all in me daddy, I want it all in me." she cried out in frustration because it was going so slow.

Dad humped his hips up forcing the rest of his hard cock into her preteen body.

"AAAAAAAAAAHHHHHHHHHHHHHHHHHH, OOOOOHHHHHHHH daddy, OOOOHHHHHHHH yeah, OOHHHHHHH yeah." she screamed as his cock slid all the way into her bald pussy.

Dad was staring at his daughter's body where his cock disappeared in her cunt. I could see small beads of sweat on his forehead.

"Are you okay dad." I asked out of concern.

"Jesus Billy, untie me so I can use my hands to feel her beautiful little tits." he asked.

I looked over at Erin to see what she thought of that idea. She nodded her head so I went up and untied both of his hands then went to the end of the bed and untied his legs. He rubbed his wrists a little then reached out and grabbed Erin's small tits. She moaned loudly as he played with her hard little nipples. She hadn't moved yet. She was sitting on dad's lap with his cock firmly imbedded in her pussy. I didn't know what to do so I sat on the edge of the bed and watch as she slowly began to move up and down on dad's cock.

Dad had her by the hips and lifted her up until just the head of his dick was inside of her. He held her there for a few seconds then took his hands off her hips letting her fall fast and hard down on his rigid cock.

"AAAAAAHHHHHHHHHHHH, OOOOOOHHHHHHHHHH again daddy do that again." she cried out in pleasure.

He picked her up the same way letting her fall again. Over and over he raised her then let her fall. She was panting hard and sweating a lot as she stopped for a moment to catch her breath. Dad pulled her forward so he could kiss her. I watched as their tongues teased each other outside their lips. Finally dad sucked her's into his mouth. They both moaned out as the played tongue tag.

Erin began to move again. She started to slowly bounce up and down on his hardness and soon was going at it fast and furiously. Dad had hold of her small preteen tits giving her nipples a workout with his fingers.

"OOHHHHHH daddy, OOOOOHHHHHH daddy, I'm going to cum soon, don't stop."

Dad started to hump up to meet her hips as she bounced on his cock. They both were panting hard and I knew that it wouldn't be long.

"AAAAAAWWWWWWWWWW I'm cumming daddy, fuck me, fuck me hard." Erin screamed.

Dad grabbed her hips and slammed her up and down his pole. I thought for sure he would bruise himself because she was slamming back down on him so hard. Her head was thrown back and a low moan escaped her lips and soon turned into a loud high pitch scream.

"AAAAAAAAAAAAAAHHHHHHHHHHHHHHHHHHHH." she hollered.

Her body stayed down on his cock. She shook and shuddered violently as he rotated his hips so his cock turned inside her 12 year old cunt.

"Take it baby, take my cock." he told her. "I'm cumming too, take my hot cum."

He held her down as he emptied his balls into her hairless little cunt. He grunted with each shot of hot cream he pumped out. I could see some of it leaking out around his shaft. Erin slowly rolled off dad leaving his cock covered with her juice and his cream. She moved close to him taking his softening cock into her mouth and cleaned it off with her tongue.

"My God Erin, that was the best fuck I've had in a long, long time." dad praised her.

"It felt so good. Billy is good too but yours is so much bigger."

"Looks like your ready again dad." I told him as I saw his cock getting hard again.

"Yeah, you two know how to make me hard fast." he answered.

"Daddy will you do something for me?" Erin asked him.

"Sure if I can."

"Billy always wonders what it feels like to be fucked. Could you do it with him?"

"Erin, I told you I wasn't sure if I wanted to do that." I said in surprise.

"It's okay Billy if you don't want to its no big deal. I didn't do that until I was in High School." he said to me.

"You mean you had someone put their dick in your butt?" I said in amazement,

"Sure, it's been a few years since I did it but yeah I've done that,"

He told Erin to get my butt ready for his cock. I got on my knees with my ass sticking up in the air. My sister moved behind me. I could feel her warm breath on my ass cheeks. My dick grew to its full length just in anticipation of what was going to happen. She took her hands and spread my butt cheeks apart. I felt the cool air hit my ass hole. I sighed when I felt her tongue swipe across my hole.

"Oh yeah sis, lick it good. Lick my ass, you know you like to. Stick you tongue inside Erin, tongue fuck my ass." I urged her.

One thing I learned about my little sister is that she got more excited the dirtier you talk to her. She moaned as she pushed her tongue up my ass. I wiggled my butt on her face as she spread my cheeks farther apart.

"Come on Erin, lick my butt hole. Get it all the way inside. OOHHHHH yeah lick my poop chute. Look at her dad she loves eating ass."

"That's enough Erin." dad told her. "Time for me to take his ass cherry."

She moved to the side and watched dad as he lined up his hard cock with my wet ass hole. He had lubed up his dick with some KY Jelly and he smeared the greasy cock head around my waiting ass hole. He asked me if I was ready, I nodded my head and held my breath in anticipation and fear. I felt some pressure then a sharp pain that soon turned to pleasure. He held his cock just inside my ass. Erin told me that he had the whole head of his dick up my ass so far. I told her that it felt like a baseball bat. I panted hard trying to get use to the feeling.

"Are you okay Billy?" dad asked softly.

"Yeah just go easy okay, it hurts but it feels good at the same time." I grunted.

"I won't move until you tell me to." he said to me.

I took a few deep breaths and found that the pain was almost gone and a warmth had spread over my groin area. My cock was rock hard without even touching it.

"I think I'm ready dad but please go slow."

"Erin why don't you get under him and suck his dick for him." dad suggested to my little sister.

She moved under me taking my cock into her hot mouth right away. Her pussy was right by my face so I dipped my head down and licked along her wet crack. She moaned out on my cock sending the vibrations through the shaft. I wiggled my hips a little and realized that dad pushed more of his cock into my ass. I grunted in pain and pleasure as he slid half of his dick into me. He paused to let me get use to him. Erin was licking and sucking my cock like a pro. She moved her mouth from my cock to my balls sucking them gently one at a time.

"He's got it half way in Billy, only half more to go." she told me.

Dad began to push again and I felt myself stretch inside. It was not painful anymore just a little uncomfortable. The good feelings soon took over and I told dad to give it all to me. He grabbed my hips and pushed his rock hard cock the rest of the way up my ass. I grunted loudly as his balls hit my ass cheeks.

"Oh my God Billy it's all the way inside. How does it feel?" she wanted to know.

"Good, it feels so good now."

"Are you ready son, I'm going to fuck your ass hard and deep?"

Dad pulled his cock almost all the way out then slammed it hard back deep into my ass

"AAAAAAAWWWWWWWW yeah dad again, do it again."

He gripped my hips tighter then began to pound his cock in and out of my young ass. Erin began to suck my cock again running her tongue all around my hardness. I had tears running down my cheeks. Not from pain but from the immense feeling of pleasure that I was experiencing.

"OOOHHHHHHH God I'm cumming Erin, OOHHHHHHHH suck me, suck me." I screamed as my body twitched uncontrollably and I unloaded my hot sticky seed into my preteen sister's mouth.

I shot string after string of my cum into her mouth as she kept sucking on me. She swallowed constantly taking all of the slimy seed into her belly. Dad had stopped fucking my ass and held his cock deep inside my ass as I screamed through a massive cum.

My little sister finally let my cock slip from her mouth and moved from under me. Dad asked me if I was ready to continue so he could finish. I grunted out that I was more than ready.

He began slowly again but soon was pounding hard and deep once more. My whole body shook with each thrust of his big dick into my ass. Every once in a while dad would pull his cock completely out then slowly push it all the way in.

"Oh my God Billy, I can look way into your butt when dad pulls all the way out." she said in amazement.

"Get ready Billy, I'm about to fill your ass with my hot cum."

"Do it dad, fill my ass, give me you cum." I urged him on.

He gave a couple more hard plunges then held his cock deep inside my bowels as his cock began to twitch. I felt the first blast of his hot cum blast into my ass canal. I groaned loudly as his cock pumped me full of his seed. He slowly began to fuck me again nice and slowly as he dribbled out the last of his cum. When he pulled his dick from my ass I felt so empty. Erin couldn't help but push three fingers deep into my ass before it closed up.

"AAAAAAHHHHHHHHHHH yeah, Oh yeah ream my ass sis, give it to me good."

I could hear the sloppy noises coming from my ass as she slammed her fingers in and out of my cum filled butt. My cock was rock hard again and I knew that I was going to blast one more time.

Dad reached down with his hand to gently stroke my hardness as Erin twisted her fingers deep inside of me. I screamed out one more time as I fired my load onto the sheets. My ass gripped her fingers tightly as I convulsed through my orgasm. I finally collapsed on the bed rolling onto my back. I could feel the stickiness of my cum and my dad's cum on my back as I lay in the puddle of seed.

"Merry Christmas daddy." Erin said to him.

"Yeah dad, Merry Christmas." I added.

"Let's rest up for a little while then I will give you my gifts. I just thought of a couple more presents I want to give each of you." He told us with a huge smile on his face.

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