Anything I'd do it needs to be safe as I don't like taking risks with people I don't know and haven't in the past and am fully clean and drug free.
Things that turn me on are wanking and sucking a guys cock or sucking balls until they cum. I would be wanking my big cock while doing this and cumming. I'd prefer with condom if sucking. Although can take it off to wank and cum over me or each other.
One time it would be hot to do a 3 way with a girl. Cuckold type thing. Maybe a girl and a guy together blowing a cock.
Another thing that turns me on is play wrestling with a guy and the winner cumming on the loser to show their dominance.
I've met crossdresser/trans before, but not met a guy honestly yet, would only under right conditions. Also want to be discreet. Anything done should be safe, as it's between strangers and I'm clean.