I want to interject here that I am usually fairly conservative, I’d even go so far as to say shy. I figured it was a little harmless flirting. The d...ors would open, I would walk out, the end. I truly did not expect what happened next. Once we finally reached the lobby, the elevator cleared out, but as I started forward, the hand at my hip tightened, keeping me pressed against the stranger behind me. He reached around and pressed the button to close the doors before anyone else could get back. Well about ten minutes into the watching she opened her mouth and took my brother’s dick in her mouth. She sucked him for several minutes and then she took my cock in her mouth and sucked it. Let me tell you we knew that it was not her first time cock sucking she was good. She went back to my brother and as she was sucking him he started to suck my dick into his mouth. All this time sis was finger fucking her pussy and I don’t know how or why but we all three had the big cum at the same time. . ” And I moved even closer to orgasm as I realized that they were fucking as I sucked his dick.I now imagined what it would be like to be the one with my cock sliding in and out of another man’s ass, and I found myself really turned on by the idea. “Yeah, fuck that face…” the older guy whispered, “fuck that mouth while I fuck you in the ass.” And I began voraciously taking that dick in and out of my mouth while I stroked his wet cock. The younger guy was now grunting as he was being slammed into. She tried to look without touching but it was so swollen she had to see if I was bit under the swollen parts. She gently used both her hands to move the skin around and while she was doing that I was getting harder and harder which actually made it easier for her to see. But as I got real hard she could see I didn't have any sores or bites and had a different look on her face. She let go of my dick sat up just looking at me and my hard on and asked me if I have been playing with it. I told her.