It ended up that only about seven or eight people actually went to the bar. After one round of beers, the party had been reduced to just four of us, D...ebbie, the guest of honor, Marcie, her best friend, Karen, and myself.We claimed a booth in the back of the bar and got down to some serious drinking. The conversation somehow turned into a joke session, and I was a little surprised to find out that Debbie are Marcie not only enjoyed dirty jokes, they knew some pretty raunchy ones. I actually. We both got naked and she was shocked to see my 7-inch cock. She started to rub it with her hands.I got her mouth and placed it onto my dick and she started to suck it. I ejaculated and she drank it all without wasting even a single drop of it. I sucked her pussy and she started moaning a bit. She released her juices within no time. I again got erect.I got the condom in position. I placed her above a pillow and placed my dick on her pussy and rubbed a bit. She was begging me to insert it. So I. I really didn’t expect anything to change in the 30 minutes since my last effort, but you never know.As I sat in the tub, I was both angry at my sister and ashamed at myself as well. Because after the cleansing part was over, I got to thinking, ‘here I am with my sister, naked in the tub, wonder what I can discover... ‘What would you do in my situation? Well I did what I did. First, I reached around and felt her boobs. Like I said earlier, we had last been roommates 5 years ago when I was 10. Jack shuddered a little and I crawled up to him and took that semi erect tool in my two hands. I stroked him gently, again watching the cock head appear and disappear as the folds of foreskin moved forward and back. As the purpling cock head appeared, I took it into my mouth and ran my tongue around it underneath the foreskin before releasing it for the down stroke. This went on for about five minutes before I got one more shudder out of Jack and a thimble full or so of cock juice in my mouth.