A Night with my Sister-in-Law and her Boyfriend - Sex Stories

A Night with my Sister-in-Law and her Boyfriend

... hanging. I told her that I could not believe it either. I noticed something then that I hadn't before, she had a hand under the water in her bikini rubbing her pussy as we were talking. I decided that I would be blunt with her and I asked her if she was masturbating. And she responded by telling me that she was reliving a little tension and that I should do the same. Continuing on that bold streak I said why do we go upstairs and do it in earnest then. She called my bluff and got out of the pool immediately. Grabbed a towel off the rack and I followed her to her room on the third floor. She quickly dried off and removed her bikini right in front of me. She told me to take my shorts off so I did and she started rubbing herself again. I was impressed, this reserved girl was now masturbating in front of her only brother-in-law. At that point I started to stroke myself with pride. I was a well built guy at 6' and muscular but didn't overdo it. I was proud of my package too, I even went once every other week to a men's salon and had it groomed by a pro. It is about 8" long and fairly thick. Shelly laid down on the bed and I laid next to her we were both going at it now and had made no real physical contact until I decided I would see what one of her titties felt like. I rubbed and pinched her nipple as I stroked it, meanwhile she is finger banging herself and rubbing her clit. I can tell that she is going to cum any second so I get ready myself. She cums loudly and shortly there ...

... after I shot my load all over my stomach. She looks over at me and dips a finger in my hot cum and puts it to her mouth and smiles. I started to get up to leave and she told me "same time tomorrow". I just smiled. The next day we were home alone again, and again Cody was there. I figured our little jack off date was probably cancelled since he showed up. Just as I was getting ready to go upstairs to my room she asked if I would stop by hers, I thought that was strange but went with it. Why I went to her room her and Cody were already in there kissing, she was topless and his pants were undone. Once she noticed I was in there she asked if I wanted to join the party, I said okay, but a little nervous since Cody was there, I was not accustomed to being around naked guys with hard-ons. Shelly sat on the bed and looked at both of us and told us to strip, I started to take all my clothes off and Cody was already done, he just had a pair of shorts on, apparently with no underwear. Finally we were both naked and semi-erect. Naturally we checked out each others packages, his was as long as mine but not really as wide. He also shaved his bare while mine still had some hair on top. I assumed at that point that he was completely hairless. Shelly dropped to her knees and took my cock into her mouth immediately. She used her other hand to jack off her boyfriend. She switched off a few times, I was really hard and so was Cody, both enjoying ourselves very much. She then switched to sucking ...