My Brother's Girlfriend

When I was twenty my brother had this really sexy girlfriend. Although she was a couple of years younger than me she always turned me on when I saw her. One day after getting home from school I went next door to my neighbor’s house to make sure everything was alright (they were away for a month and had asked me to keep it up, etc). When I got there I noticed the front door was slightly ajar so I walked in, being careful to be quiet in case someone had broken in during the day. I heard voices in the back bedroom and upon getting closer I discovered it was my brother and his girlfriend. It sounded like they were making out. Curious I started to get closer when I heard her say she had to use the restroom and would be right back. I froze and watched her walk by me in just her panties and bra. She was hot. I looked around the corner in the bedroom and saw my brother lying on the bed nude stroking his hard dick. I was impressed. I quietly called him. He jumped covering his dick and looking at me. I walked in and told him that unless he went along with me I would tell Mom and Dad what I saw. He asked what I wanted. The bedroom had a closet just pass the end of the bed with doors that had slats instead of solid wood. I told him that I would be in the closet so I could watch him and his girlfriend make out. I wouldn't make any noise so his girlfriend wouldn't know I was there. At first he wasn't sure but when I reminded him that I would tell on him he said okay. I quickly slipped into the closet and closed the door just as his girlfriend walked back in the room. She climbed up on the bed and straddled my brother. I could see her ass. It was perfect in her tiny panties. As they made out I was getting a hard on and decided to relieve the tension. I unzipped my shorts and pulled them down along with my underwear. Now free my dick felt a lot better and I slowly started stroking it. They were really getting into making out, my brother had now slipped her panties off and was rubbing his dick. I was enjoying the show as she moved up and down let his dick slide against her.

It wasn't long before he put his dick inside her pussy and started fucking her. She was moving pretty fast now. So was I stroking my dick faster trying to keep up with their rhythm. It wasn't long before I knew I was going to cum. She was also getting ready judging by her groans and breathing to cum. I decided to make it really interesting. They were so involved that they did not notice me opening the closet door. I could see even clearer. I quietly stepped out of the closet and got closer to the end of the bed and continued to stroke my dick. I figured I was close enough I should be able to squirt my cum all over her ass. Just as she started cumming and let out a loud groan I squirted, I watched fly right on top of her sweet ass. I did it twice more before I finally finished. It was terrific as I watched it slowly seep down her ass towards her wet pussy.

I got back in the closet and closed the door. She was still moving up and down on my brother’s dick until he came. It was really neat watching his cum seep out when he was finished. After a few minutes she got up and licked off his dick. Her ass was now up in the air and I could see her little tight asshole clearly. I found myself getting hard again but decided to wait until they were gone. It wasn't long before they got up dressed and left. I got dressed and left shortly after. Later that evening my brother came into my bedroom and asked me how I liked the show. I told him it was fantastic and thanks. I also told him how I shot my cum over her ass. He laughed and told me if he knew I was going to do that he would have had her move closer to the end of the bed so I could try and aim for her asshole. We both laughed at that. It never happened again and to this day his girlfriend does not know she was the target of two guys cumming.