I think it was more unplanned than anything else it was with an ex boyfriend of mine we had always used condoms as he was poz so he didn't want to give it to me blah blah blah so one night we both got stoned on 420 and when I smoke pot I just want to get fucked so we went in the bedroom and I was begging for him to fuck me but we had no rubbers. I just said OMG fuck me I don't care.... he pulled out before he came was a few more months before he was comfortable with it to breed me
If someone's going to fuck me bareback at a sex club / party I assume they know I'm poz, considering I'm taking loads from strangers. If the top is poz then nothing. If the top is neg and he's dumping loads in anon butts he knows what he's doing.