Sis Gets Horney for?

This Story is 100% fictional.

One day I happened to be walking by my brother's room when a crack in the door caught my attention. I peeked into his room wondering what he was up to. I couldn't believe it; he was standing there with his penis sticking out. His hand moving up and down on it. "What was he doing," I thought to myself. I couldn't move. I just stood there starring at him. My heart started pounding. I watched as he moved his hand faster and faster until he started grunting out loud, and some strange looking stuff came out. I quietly backed up and headed down the hall un-noticed.

I couldn't get the sight out of my mind. All day long I pictured my brother standing their naked rubbing his penis. I wondered why he did this and what the stuff was that came oozing out.

It didn't take me long to figure out this was a daily ritual for him. Every day after school he would come home and head for his room. I managed to sneak quite a few peeks without him knowing. He seemed to really enjoy rubbing his penis. I wondered why he enjoyed it so much. I thought about him doing this all the time.

Then one day out of the blue, he brought a girl home with him. I was shocked. They went strait for his room and I wondered what they were up to. I waited several minutes then I headed for his bedroom door and peeked through the crack.

The girl seemed to be taking off her clothes. She already had her shirt off and I could see her boobs. They started kissing a bunch and I noticed my brother's hand was tugging at her jeans. The girl quickly wiggled out of them and got on my brothers bed. She lied down on his bed in only her panties. I didn't know what to expect next, but I couldn't take my eyes off them. Not now!

My brother stood up and stripped down to his underwear and jumped on the bed next to the girl. They started kissing again. His hand found its way inside the girl's panties. I watched and wondered what he was doing. When he pulled her panties off and tossed them aside I saw the dark patch of hair between her legs. My brother started rubbing her down there. The girl opened her legs and I saw the pink lips of her privates.

My brother stuck his hand down there and started rubbing. He pushed his fingertip inside her. I watched as he started moving it in and out of her. I couldn't believe what he was doing to her, but she seemed to like it. I heard her say "Oh god that feels so good."

They kissed a bunch more. I heard my brother tell her, "Your pussy feels so good". Then he stood up and dropped his underwear to the floor. He rubbed his penis a few times and got back on the bed with the girl. I watched her rub his penis up and down as he went back to sticking his fingers inside her.

My heart was just racing now. I knew I shouldn't be watching, but for some reason I couldn't take my eyes off them.

The girl leaned back and opened her legs wide. My brother got between them and slowly moved closer to the girl. He took his penis in his hand and moved it towards the mound of hair between her legs. I watched his penis slowly sink inside the girls opening. "Oh," she gasped.

My brother started moving his penis in and out of the girl. Each time the girl moaned aloud. "Oh yeah, god your cock feels so good in my pussy." My brother's penis started sliding in and out of her faster. "Oh fuck my pussy," she moaned. "Fuck my pussy good," she yelled.

I watched my brother's penis moving in and out of the girl. I had to admit it was kind of exciting. I wondered how long this would go on for.

Then my brother started in. "Your pussy is so hot and wet," he moaned. "Oh fuck me," she moaned back. "It so tight," he yelled. "Harder fuck me harder," the girl screamed. "I can't last much longer," he told her. "Cum baby let me see that cock of yours squirt," She said.

My brother moved in and out of her like crazy for a minute. Then he jumped up and rubbed his penis real fast. "Let me have that hot cum of yours," the girl said.

That stuff started coming out of his penis again. This time it seemed to be squirting out farther than usual. I watched as it splattered across the girl's stomach.

"That's it, cum all over me," she yelled. "Oh shit yeah," My brother moaned, as he continued squirting it on her stomach.

The girl started rubbing it into her tummy. "I love how your hot sticky cum feels on me," she said. "That was great," my brother told her. "Yeah your cock felt so good inside me," she told him. "God you were so wet this time," my brother told her. "I know I was so turned on," she said.

I decided the show was about over and I better quietly back up and get out of there before I got caught. I backed up and headed back to my room.

I jumped onto my bed thinking about what I had just seen. I couldn't stop thinking about it. The sight of my brother's penis going in and out of the girl's private parts was all I could imagine.

What did that girl call it a cock, I thought. And her vagina was a pussy. Is that what they call them. Humph...cock and pussy I guess that sounds all right.

I loosened the button on my jeans and opened them a bit. I put my finger on my lip and bit it nervously as I kept thinking about the whole situation. I slowly slid my hand inside my jeans until I felt the waistband of my panties. I took a deep breath. Don't be such a chicken I told myself. What is the big deal anyway? Then with one quick motion I slid my hand inside my panties. I felt the thin strands of hair between my legs. I moved my hand lower until my finger found the lips of my vagina. I felt them part slightly as I started tracing my finger up and down my slit. I felt a warm sensation and my fingertips suddenly seemed wet and slippery.

I quickly pulled my fingers out of my panties to examine them and they were wet with some kind of moisture. I put my hand back in my panties and started exploring. The more I probed around the wetter I became. Certain spots I found seemed to feel real good. I told myself to stop, but it felt to good I just couldn't.

I stood up and yanked my jeans and panties down to my ankles and fell back onto my bed. I opened my legs wide like I saw the girl do. I started rubbing myself faster and faster. Then I remembered how my brother stuck his fingers in the girl and she seemed to really like it. I explored myself searching for my opening. I took one finger and slowly eased it into my vagina. It was so hot and wet inside. It felt a little weird at first but after a few minutes it started feeling wonderful. The faster I moved my finger in and out the better it felt. I was in heaven. My heart was beating so fast and hard. I never imagined something could feel so good.

I guess I didn't hear my brother come in, because next thing I knew I heard him yelling, "What in the hell are you doing." Right at the time when I had my jeans and panties down around my ankles and my finger working in and out of my you know what.

I tried reaching for and pulling up my jeans but they seemed to be stuck tight around my ankles. I felt my face turn red blushing in embarrassment, as I desperately continued trying to pull them up.

"Hey take it easy sis it's ok," my brother said. "Oh my god," I yelled. "Hey calm down you need some help or something," he asked. I didn't know what to do or say, so I just nodded.

He slowly came closer starring at me. "Man you sure are wet," he said chuckling. I blushed again. "Ah sorry I didn't mean to embarrass you," he said. "It's ok," I told him. I felt him tugging at my jeans trying to get them to come up.