My Sister Sarah

She put a hand on her hip and rubbed her butt a few times. I knew she was doing it on purpose now, but I was unsure why. I just watched wondering what she would do next. Her other hand seemed to be rubbing a breast. Then it moved lower and she rubbed her pussy through her jeans. I didn't know what the hell had gotten into her. I felt my cock stir and knew I was getting hard.

I heard a snap, then the sound of her zipper. I watched as her jeans seemed to lower slightly. She giggled again. The waistband of her white panties became visible. Slowly her jeans seemed to fall lower exposing more of her panties to my view until they were down around her knees.

I didn't say anything. I watched as Sarah rubbed her ass through her panties. I unsnapped my jeans and let down my zipper. She looked back at me smiling. I moved up behind her and cupped her breasts in my hands. She jumped slightly at first. Hey, what, she said. Then she let out an ooh, as my hands fondled her tits through her shirt. My rock hard cock pressed up against the thin fabric of her panties. I reached in her shirt and my hands slipped beneath her bra finding her already erect nipples. I squeezed them gently. Ooh, she sighed again.

I fondled her breast with one hand and moved the other lower. I found the waistband of her panties and slipped my hand inside. She was already wet. I traced her slit with my finger and quickly found her entrance. My finger penetrated her pussy and she gasped aloud.

After a few minutes of fingering her pussy I reached for the sides of her panties and pulled them down to her knees. She just stood there. I pulled out my cock and took it in my hand. I positioned it at her entrance. I could feel her juices on the head of my cock.

Wait...No...Wait, she said. It was too late, I slammed my cock into her wet pussy and started ramming her from behind. Oh...wait, she said again. I pulled back and started pumping my cock in and out of her pussy. Oh...please...oh...wait, she moaned. She was so wet I slipped in and out of her pussy with ease. Oh...wait...oh...yes...oh god yeah, fuck me, she moaned.

Sarah's pussy felt so good. I could hear her letting out soft little moans with every penetrating stoke of my cock. She was obviously enjoying this just as much as I was. Everything happened so fast and I was so turned on I didn't think I would last too long. I could feel my orgasm approaching. I tried to hold it back as long as I could.

Oh yes...fuck me...oh god your cock feels so good, Sarah moaned. I pumped away faster and faster. Oh my god, she yelled. Oh shit, oh yeah...oh yeah...hear I cum, I blurt out.

I wanted to pull out, but her pussy just felt so good I couldn't help it. I felt my orgasm hit and I erupted inside her. Ooh, what's that, she moaned as I began filling her pussy. Oh shit yeah, I moaned, I'm cumming...oh yeah. I pumped a few more times as I drained my cock inside her. What, she said...you came in me, you fucker? Ah, yeah, I moaned one more time. I can't believe you came in me; I don't want to get pregnant.

I suddenly realized what I had done, and what it could mean. Ah, you wont, I reassured her. Yeah, how the fuck do you know, I better not. Aren't you on the pill or something? No, I'm not...damn it, she yelled. She pulled up her panties and jeans and stormed off.

Over the next few days, Sarah didn't talk to me. She wouldn't even look at me. I knew she was pissed and wondered if we would ever be the same again.

Several more days passed, then a week, then two. I just thought I would let it go and leave it up to her if she wanted to talk. Then one day she came storming into my room smiling and hugged me tight. What, I asked. I got my period this morning, she said. Wow, well good for you, I told her. Don't you know what that means you goof. What does it mean, you're a girl, I said. It means I'm not pregnant, she said smiling. Oh, yeah right, that is good news. Yeah, I was so worried. Next time, don't cum inside me; she said smiling again as she left my room.