Course they do mate- just some more cautious than others. The lads me and ex had over would always empty their bollocks up her, younger lads generally up for it
It’s one of our fantasies. Go to a party, I go to the loo and get fucked by one or two guys and come back to my man who’s hopefully with two guys, I pull my knickers down and show him other men’s cum in my knickers. And watch my man and his friends reaction.