My sister is a good looking woman. I know that may sound weird coming from her brother, but I am a guy also.
She never had good taste in men. They would tell her stories, fuck her and then dump her. She would swear up and down that she wouldn't fall for the same thing, but another guy would come along tell her stories and it would happen all over again. She was always looking for that guy who would love her for who she was, but never seemed to be able to find him.
I did better in the spouse department. I married a good looking, smart woman who had eyes only for me. At least that's what I thought till I came home early one day. I found a guy on the floor, my wife on top of him. He was pounding her pussy like a jack hammer. A big black guy was behind her with the biggest cock I have ever seen buried to the balls in her ass. All the while she was screaming "fuck me, fuck me, fuck me harder!" Needless to say we were divorced in short order.
The last guy my sister was married to ran off with a bimbo half his age. When they divorced he took everything. She had a lawyer who couldn't find his ass with both hands. When I got divorced I found a very good lawyer who got me just about everything.
My sister tried to keep going on her own, but she couldn't, so being the good little brother I told her to move in with me while she got on her feet. When she moved in I told her to hang out for a bit till things got better. She didn't have to work because I made enough money to keep us both going for awhile.
Before my sister moved in I used to walk around my house in my underwear. I didn't see the need to stop that when she moved in. She took to wearing an old t shirt that came to mid thigh. She wouldn't wear a bra and the panties she wore were almost see through. One day we were in the kitchen. She bent over to get something out of the lower part of the fridge. Her shirt rode up and showed her butt with those see through undies. I got an instant hard on. Since I wear briefs it was very obvious. I immediately went to my room and put on my warm up suit bottoms. I decided that would be a better idea.
She had been living with me for about three months, and I was getting a serious case of blue balls. I hadn't had a date for almost four months. Not that I'm a bad looking guy or anything. But work and other stuff just kept getting in the way.
While I do jack off once in a while it just isn't the same. Then one night I was sitting in the corner of the couch watching a movie. She sat down, then lay down and put her head on my lap. I didn't think anything of it. When we lived with our mom and dad she would do the same thing. Of course I was a lot younger and didn't have the same sex drive then.
Her shirt is a v neck kind of thing, and it is very loose. When she lay down the shirt fell open. I looked down and saw her most perfect breast and nipple. I looked away quickly, but I couldn't help but look again. Once I took the second look it was easy to keep looking. After a bit I started getting hard. Finally I got a full hard on. She moved her head a bit kind of bumping up against my cock. It was obvious to her that I was hard as a rock. She looked down and saw her shirt had come open. Then she looked up at me and smiled. Then she turned her head and went back to watching the movie. It was then I noticed her nipples were getting hard. The one I couldn't see stuck up against her shirt, and the one I could see looked like a finger sticking out. I realized she was enjoying showing me as much as I was enjoying looking. I felt kind of weird inside, but I thought what the hey, I'm a guy and she's a woman. After the movie she got up, stretched and went off to bed. When she stretched she faced me and made sure her shirt came up to almost her waist, giving me a full view of her see through panties and everything under them. Her nipples looked like they were going to tear through her shirt they were so hard. When she walked to her bedroom she wiggled her ass so seductively I almost said "you got fries to go with that shake." But I caught myself just before I blurted it out.
I went to my room and into the shower. I grabbed the lotion and went to work on my cock. It didn't take long before I was shooting my load. As I said, that works, but it isn't the same.
Three days later I came home from work and she met me at the door. She loosened my tie, undid my collar button and took off my coat. I was a bit surprised but decided to go along with it. She had me go to the dinning area, the table was set and almost ready to go. I sat down and asked her, "OK what are you buttering me up for?"
She looked at me with a fake hurt expression and said "can't I just show my appreciation to my little brother who has been taking care of me?" Then she sat on my lap. She put her arms around my neck and kissed me. I don't mean a peck on the cheek. This was a tongue twining, spit swapping kiss. I was too stunned to think clearly and didn't do anything. Then just as suddenly as she started she stopped and stood up. While she was getting things ready, she kept bending over and giving me great shots of her breasts and nipples. I was confused and told her so. She just said I should shut up and enjoy the dinner and show.
After dinner we went to the living room and I started watching t.v. I sat in my big recliner while she fussed around the room picking up things that didn't need to be moved. After I got comfortable she came and sat in my lap again. I put my arm around her back to support her and she put her arms around my neck again. This time I was ready! I figured, what the hell all she can do is slap me. So as she started kissing me I reached under her top and started massaging her breast. Her nipple was hard as a rock. I rolled it between my finger and thumb. She broke the kiss and started nibbling on my ear. When she did that she said, "um, that feels nice." There was no hiding I was as hard as a rock. Just as I was starting to enjoy myself she jumped up.
She looked at me and said, "I'm sorry." Then she headed off to her room and closed the door. I finished the movie, but I was very confused. On my way to bed I knocked on her door and asked if she was alright. She opened the door and said she was just fine. I told her I was a bit confused again, and asked if she didn't like what I was doing? She said it was great, then leaned out and kissed me on the lips. I told her I liked the feeling of her breast, then I reached out and started massaging it again through her night shirt. She took a while to push my hand away, told me good night and closed the door.
I went to my room grabbed the lotion and went into the shower. The tension had built up to the point that when I did cum I was sure there was so much it would plug the drain.
After I went to bed I heard a knock on my door and my sister walked in. I sleep in my underwear and hadn't gotten under the blanket yet. I still had a hard on because I kept thinking about the what had happened. She looked down at it and smiled. She said, "I don't know what got into me tonight." I looked up at her and said with as much sarcasm as I could, "I know it wasn't me."