My experience was different. We were at a swinger's house party and she was dancing with other guys. At one point she had to use the restroom. I went into the restroom after she was done, and when I came out, she was gone! I thought she would have waited for me, but nooo! I walked through the house and backyard, no sign of her. I asked a few people if they had seen her and I gave a description. One guy pointed to a bedroom door. My heart began pounding as I walked towards the bedroom. I wiggled the door handle, it was locked! I knocked, no answer. Knocked again, a bit harder. Called out her name and told her that I knew she was in there.
I hear some shuffling, and maybe a minute later the door opens. She was giggling, obviously buzzed, and the guy had an 'Oh ......!' look in his eyes. He bounced out quick as fuck while I talked to her. Her lipstick was gone and I could see shiny spit on her cheek. She was obviously giving him a blowjob, and maybe more. I kissed her and wanted to fuck on the spot in the bedroom (there was another couple on the bed). I was mad, but more horny than mad, we left the party and the entire way home I was admittedly being a pest as I asked her for details. She wouldn't budge! When we got home I threw her down on the bed, pulled her dress up, pushed her panties aside, and slid into her. She was fucking wet! And the not knowing of whether it was some other guy's cum or just her own wetness turned me on so fucking badly! She never did admit to fucking him....