It took me some time to realize, but I think a guy I met last year wanted to stealth breed me.
Last summer I was in Germany visiting a friend of mine for a couple of days. I met a guy via GR - older, a bit dominant. When it came to buttfucking, for sure I saw him putting a condom on. He had a nice thick cock, but he fucked like a rabbit: veeeeerrry fact, but not deep. He fucked we doggy style first; I wanted to change the position, and when I reached back to his cock it was bare - I didn't remember if he pulled out his cock and had possibility to remove the condom. I asked him about the condom and he told me that he just threw it away because he wanted to take a new one. I haven't looked for that condom. He put a new one on and fucked me again until he finished deep in my ass, this time with condom for sure. We never met again, I got tested and I'm still neg, but I was stressed like hell after that meeting.