They had pretty much described the time my wife had off work exactly. Every Thursday evening, overnight each month and a weeklong course twice a semes...er or so. I froze as I heard all of this. Surely Jane wouldn’t be cheating on me? Surely I would know if she was? The couple left their booth. As they walked away I looked closely at the woman. It might have been Jane but I couldn’t be sure. I left the bar and drove home in a daze. What was I going to do now? As I drove I decided that I would. As I got naked, I read the title, Cum Sluts. I was totally stunned with disbelief. On the cover was a beautiful woman with a man's cock in her mouth! Ten minutes later, I knew all there was to know about sucking dicks, swallowing cum and getting it shot all over your face! I got in the shower and imagined that the men in those pictures were making me suck their swollen cocks and shooting their cum in my face. I masturbated myself stupid again and again, until my poor pussy was sore.I hid. Sis kept sucking it like a pro. I told her she is very good at blowjob, to which she said she learned that by watching porn. I was at the peak of cumming. So I warned her, but she kept on sucking it harder and deeper. I shot my load inside her mouth. She gulped down the entire cum without hesitation. She drank all the cum and sucked the drop out of my cock tip and made it dry in no time. The scene was so erotic she drinking my cum.Now it was my turn to pleasure my sis. I took her in my hands. My orgasm lasted, what seemed like minutes after cum stopped shooting and oozing out of me. It was the most powerful and amazing sexual release, I have ever experienced. Even my most intense and wildest moments with women cannot compare.Steve and I then collapsed on the bed and lay next to each other as we caught our breath. After a few minutes, we talked about our bi-sexual feelings and made a pact to keep it between us. We wanted to continue having sex, but both of us wanted it to stay our.