Have had quite a few in my time, with couples at first I met on an adult dating site. Was nervous as fuck the first time,,,,was afraid of not measuring up, not getting wood, not lasting long enough, lasting too long etc etc etc
The first couple were pretty experienced swingers and they were awesome. He sat back and watched while me and the wife went at it, then we switched....was damn hot, I was hooked!! Saw them fairly often for a couple of years along with several other couples. Most of the time, the husband or boyfriend watched for a while then joined in...The women sure seemed to love it getting pounded with a cock filling her throat or her ass. I really enjoyed it as well, yes we even crossed swords a few times,,,I am not homophobic and quite honestly with it being done as part of a 3some is pretty damn erotic,,,don't mind at all if he is pounding her and I have my dick in her mouth which sometimes switched to 2 mouths on my cock,,,,all good....got no interest in being with another guy alone whatsoever, but in this scenario--all is good as far as Im concerned,,,,
Now I guess this thread started asking if an agency should offer it? I don't know, I do not think I would pay extra for it but who knows,,,,,,