You

“So ok, I’m officially exhausted,” Carly admitted. “I never knew sex could wear you out.” All the girls giggled again. “So let me see, who is rested up and ready to go again? How about you, David?” She turned and looked at me. “You haven’t worn your pecker out yet, have you? At least you didn’t cum this time. Are you good for another go?”

“Um, sure,” I smiled back at her. “You want me to fuck you now?” I asked with a wink and a grin.

“Nope, sorry, big boy. Not allowed to include myself in a dare.” She had a mischievous look on her face. “So I guess if it’s not me, it will have to be somebody else.” She paused for dramatic effect. “David, I dare you to fuck your sister!”

Well, this was certainly a surprising, unexpected turn of events. But I guess I should have known it would finally come down to fucking. I just didn’t believe that the first fucking dare would be for me to fuck my sister. It’s not like I didn’t want to. But I wasn’t sure if she would be willing to do it. Especially in front of her three best friends.

“So what do you say, sis?” I turned to her. “Are you up for this?”

“Oh, you know I’ve wanted this for a long time, bro,” she grinned. “Yeah, I’m up for it. Come on and show my friends what a hot stud you are. Fuck me like there’s no tomorrow.”

“You can’t believe how long I’ve wished for this too, sis,” I replied. “Come over here and let’s do it!”

Susie got up from the sofa and strutted over to the chair where I was sitting. I was slouched back with my throbbing cock sticking straight up from my groin.

“Have a seat, sis,” I grinned. I held my hard thick stick shift up by the base, just for good measure. Susie turned her back to me and holding the arms of the chair for support slowly lowered herself onto my pole. She was as wet as I was hard from watching Carly and Amy getting each other off. I felt my cock being wrapped inside a warm wet cocoon as she lowered herself onto my raging member.

“Ooooooohhhh, god yes, David!” she moaned when her buttocks landed on my thighs and my cock penetrating all the way in. “Oh god, your cock feels great!”

I couldn’t help myself either, the feel of her hot cunt taking me all the way into her depths was so sensational. I groaned loudly as she began slowly swaying in my lap. “Uuunnnnnnhhhhh! Jesus, Susie! Your fucking cunt is so tight! I can’t believe how great it feels.”

She continued grinding her tight round ass in my lap then started slowly lifting herself up and sliding up the full length of my dick until just the head was inside, then slowly lowering herself back down again until my shaft was all the way in her hot womb again. The sensations she was giving my cock were indescribable.

I could hardly believe this was happening but I wanted to believe it. I had thought about it more times than I could count while I jacked off with images of her in my mind. Now I was actually finally fucking my own sister! And we were doing it right in front of her three best friends! It just couldn’t get any hotter. I looked around Susie momentarily taking my eyes off her sweet ass bouncing up and down on my pole. All three of the other girls were just staring at us in slack-jawed awe. But all three were also massaging their tits and their pussies.

Susie was picking up the pace now, bouncing faster and faster and harder and harder on my straining cock. Her breathing was getting heavy and she was shouting “oh!” and “unh” each time she landed on my pelvis. I had my hands on her soft ass, holding onto her and keeping her from popping off my dick. Then I slid my hands up and cupped both of her firm young tits from behind.

“Oh, yes, oh god yes!” I shouted, not holding back at all. “Just like that, yeah, just like that, sis!” All she could do was grunt and groan in response. The walls of her pussy got tighter and tighter around my shaft as my thick member kept expanding. “Unnnnhhhh, David!" was all she could manage to get out.

As much as I was enjoying the reverse cowgirl ride, I wanted to take control before I exploded. The next time she landed in my lap I held her there by her hipbones, keeping her from bouncing back up again. Then I slowly slid down from the chair landing on my knees. She caught on immediately and went to her knees too and threw her hands out in front of her landing on the floor on all fours. Now I had her doggy style, my favorite position. Still holding her hips and ass now I began pumping her, holding on to her tight as I slid back and forth, in and out of her hot wet cunt. Now we were really giving the other girls quite a show.

We both were actually already quite horned up before we had started from watching the previous activities and I could feel both of our climaxes rising after just pumping her like that for a minute or two.

Susie was panting heavily and moaning loudly. “Oh god, David! I’m about to cum, I’m going to cum now!” I felt her body quivering and shaking in my hands. Her pussy contracted hard, squeezing me so hard that my dick couldn’t move buried all the way to the hilt inside her womb. That was all it took to kick me over the edge too.

“UUUUNNNNNHHHHH!” I roared like a banshee, my groans filling the room, not trying to hold back at all. I threw my head back uttering guttural noises as I shot stream after stream of my thick hot jizz deep into her depths.

“OOOHHHHHH! Oh, David!” she was screaming simultaneously as wave after wave of orgasmic pleasure swept over her. Her body was shaking visibly and she had already fallen down onto her elbows in front creating an angle that allowed my manhood to go even deeper into her wet willing womb.

Finally we both collapsed in a heap on the floor, trying to catch our breath. Susie rolled on her side facing me and we enveloped each other in a tight hug and began kissing deeply and feverishly.

“Oh, god, Susie, “ I was finally able to articulate. “That was so fucking incredible. That was the best fuck ever. I love you, little sister.”

She smiled back at me and said breathlessly, “Me too, bro, that was really fantastic. I’ve never been fucked that good. You are so fucking hot, David. I think we might have to do this again soon.” We both grinned at each other and just stayed there on the floor holding on to each other.

We had practically forgotten about her girlfriends sitting there watching us until we heard Amy speak up. “God, that was so fucking hot, you guys. I can’t believe you did that!”

“Yeah,” Carly chimed in. “That was like better than any porn movie I’ve seen. David is like a fucking porn star. I want me some of that shit!” she laughed.

“Hold on there, girlfriend,” Beth spoke up. “I want in on that too. Now that we know David is such a hot fucking stud. Maybe he’ll just have to fuck all of us.” All three girls were giggling again. But now I was finally appreciating all the giggling.

“So, David,” Carly said when the giggling finally subsided. “Are you ready to make the next dare now? I can’t imagine yet a hotter dare. Too bad you can’t include yourself in the dare so you can’t dare any of us to fuck you.” She made a pouty frown. “So who will it be, stud man?”