Claire needed Sex

It was about 10:30 Friday night and I had just gotten home from running with my friends. I was tired and a little drunk from three beers I sneaked at a party. My parents were still at the bowling lanes; they wouldn’t be home until after midnight. I didn’t know where my sister was but she was sixteen, I didn’t need to babysit her, and I didn’t particularly care where she was or what she was doing. I headed for my room and pulled out a XXX DVD and stuck it into my laptop. As I got ready for bed the video started. It was a favorite. A seventeen-year-old boy becomes a man with his step-mother, then he fucks a couple of her friends, and finally her sixteen-year-old daughter, his step-sister. The end of the video has my hero fucking both the mom and daughter as the light fades into darkness. I was eighteen and was still waiting to get my first piece of ass. I imagined myself in the video with those four hot women.

About the time the step-sister was giving my hero head, I heard a knock on my bedroom door. I jumped, startled by the interruption, then closed the lid of my laptop before snarling “Who is it?” I was irritated that someone had interrupted my self-indulgence. I was naked under the blanket and my boner was aching from the pressure of built-up lust.

The door opened a few inches and my little sister Claire stuck her head in and asked “What are you grouching about.”

“You’re bothering me. Go away.”

“What are you doing?”

“I’m trying to get some sleep, now get your bitch ass out of my fucking room.”

Not only did she not get out, but pushed the door wider, stepped inside, and closed it again. “I heard voices, you watching a movie?” She lifted the lid on the laptop and the video began to play again. Claire stepped back and watched as the kid on-screen rammed his hard meat into the girl and started screwing her, the step-sister’s boobs were bouncing all over her chest while she got fucked. My sister turned to me and said “I thought this is what you were doing,” then backed up and parked her ass on my bed and turned back to the screen, “Who is she?”

I wanted to shock her, to get her out of my room so I said “That’s his sister. She got too nosy so he’s raping her.”

“Don’t look like rape to me; she looks like she’s enjoying him a lot.”

“Damn it, Claire, turn it off and get your sorry butt out.” She didn’t move so I kicked at her but the blanket softened to blow.

Claire looked over her shoulder and smiled impishly, “Are you naked under there?” she quizzed.

Her question made me wary, “No.”

My sister stood up, grabbed the end of the blanket, ripped it off me then threw it on the floor, in half a second I was lying completely nude in front of her. She grinned hugely and said mockingly, “Oh Travis, you lied, you’re naked.” My erection had deflated a little but she looked directly at it then asked “I’ve only seen one live prick before, is that as big as it gets?”

I felt myself burning red with embarrassment but something else was happening to me. My cock started to grow larger again, reacting to Claire as she watched it. Her eyes were glittering as she glanced into mine and asked “Have you ever had sex?” I couldn’t answer her, I couldn’t make any sound as I looked back at her. My silence gave me away, “Me neither, I almost did with Jacob but he squirted all over my clothes when I touched it and I didn’t go out with him after that,” she said then added, “but I still want to.”

“You want to go out with him again?”

“No, I still want to have sex.”

My throat tightened but I managed to croak, “You’re only sixteen, that’s too young to be doing that yet.”

“What do you know about it? Maybe you played checkers when you were sixteen, but a lot of boys and girls my age play other types of games. Let me show you, you’ll see, I’m old enough” she began to unbutton her blouse.

Claire peeled off her blouse, she wasn’t wearing a bra. Her tits rose firmly from her chest in twin mounds of smooth flesh and skin. Her nipples extended from the light brown circle at the tip of them. She was flushed around the neck and face, her cheeks glowing in the dim light. I watched, fascinated, as my sister unhooked her skirt and let it fall to the floor. She looked me then turned in a full circle, showing me her body. At 5’5″ she weighed maybe 110 pounds. Her shoulders and back slimmed to a waist I could span with one hand then flared out as her hips and ass then rounded down to firm thighs. Her panties were white lacy high cut briefs that accented the curve of her thighs and butt. She finished the full circle facing me again. I could see a shadow of pubic hair hidden behind the thin lace.

My cock had exploded to full strength while she was putting on the show, my embarrassment burned out of me as a morning fog burns off from the sun. Claire stepped closer to the bed, looked at my hard-on which was aimed at the ceiling then put a finger in the band of her panties and pulled it from her stomach then offered, “You want to take them off me?” She let the elastic snap back against her skin.

This was too sudden; I couldn’t figure out exactly what was happening, “What the hell are you doing Claire?”

She pointed to the monitor where the kid was fucking the girl, “I want to do that and I don’t want to wait anymore.” She looked back at me, I saw her shiver, she said cautiously, “We can do it together.”

“I’m your brother, we can’t do that.”

Her moment of timidity faded and she announced firmly, “Of course we can, you have a stiff prick and I have the place for it, right here,” She put a hand into her panties and rubbed her crotch, and justified, “You don’t have a girlfriend, I’m not dating but we both want that,” she nodded to the monitor again. “I watch this stuff on my laptop and it’s fun, but I think it would be more fun if a boy was with me.”

That got my attention, “You watch porn too?”

“Sometimes, and guess what I found, and it’s something I kind of think about.” I was thinking blowjobs, but she surprised me, “I look at videos with brothers and sisters doing it.”

“Brothers and sisters, together?”

Claire sat on the side of the bed and put her hand on my thigh, a couple of inches below my erection, “They fuck and it looks like fun.” She nodded at the video where the step-sister was bouncing on the boy’s cock, “We can too if you want.”

I glanced at the monitor then back to Claire, my prick was as hard as it ever felt, it was thudding with pressurized lust. I was yielding to my sister, “You watch brothers and sisters doing it? Show me.” I grabbed my computer, shut off the video, and handed it to Claire. She smiled big then sat on the bed next to me, her tits bounced and swung back and forth, enriching my view and thoughts of her.

We sat side by side, she typed XNXX.com into the address bar and in moments the monitor was full of sex videos. Claire didn’t stop there, she went to ‘search’ and entered ‘brother and sister’ then a new set of videos popped up. “See, I bet not all of them are real brother and sister but I look for the amateur ones, they look more real. I looked at her, my mind was blank, who the hell was this girl sitting next to me?? Claire, my younger sister was missing, in her place was this strange girl, I didn’t know who she was.