I moved my hands to her hips and pressed my stomach against her back. I was on the verge of cumming. The feeling of cumming was familiar to me and it ...ad been for years, except that the intensity of my upcoming orgasm was multiplied by ten. the secrecy and forced made it all the more fulfilling. I fucked my sister hard as I was on the verge of cumming. "How do it feel being fucked by your little brother?" I asked. She didn't reply and I thrust hard into her. ".....good," Nora mumbled."I can't. When I wasfinished a few second later and looked to my father he was looking at mewith his jaw hanging down literally next to his feet."Dad," I tried to comfort him."Who are you?" he asked me."I'm Sigfried, your son or rather your daughter now."Daughter?" Dad I know it's a lot but please try to calm down." But you're pregnant?" That's complicated please sit down dad."He couldn't resist my suggestion and nearly fell down on my bad. "My sonturned into a girl and now he is pregnant? I think I'm. Lucky me, right?As the night wore on, the ladies got drunker and the crowd started to clear out. I kept bringing over drinks because well, school teachers and alcohol go together so well in the summer. Once the dance was over wife asked me if we could drive a friend of hers home, she was in no condition to drive. We got ready to leave and the booze hit my wife and she got sick and wanted me to take her straight home. I dropped her off at home and then took her friend Wendy back to her. I'd never thought of myself as an exhibitionist, never even considered it, but, now, I was seeing that it really had me excited that I was going to bare my cock once again to this mother and daughter pair and masturbate while they watched. I was so excited.I quickly checked my mail and changed into a teeshirt and a pair of shorts, one that was cut off enough that when fully erect, the head of my cock would peek out the bottom. Yes, I was certainly an exhibitionist.I went up to their apartment.