When I was in college I lived in an apartment close to one of the frat houses. I was feeling very promiscuous one night so I put on a small see through white shirt with no bra and a pair of short shorts that let my ass hang out a bit with a thong and over to the frat house I went.
I went from room to room searching for one with just two guys in it. Finally I find one. I walked in, shut and locked the door, and told them to both take their pants off so I could suck their cocks. They just gave each other an odd look and were hesitant. I got down on my knees and started rubbing their cocks through their shorts. They were pretty instantly hard. Very shortly they were both naked and I was taking turns putting their cocks in the back of my throat.