MMF/Bi playmate needed for birthday present

I can't think of anything hotter than my partner finally getting to act on years of unfulfilled fantasies of being with another guy. We've known each other for 18 years but only recently both been in the right place at the right time to connect. His past partners have been pretty vanilla and those desires of his have been on lockdown... until now. He's kissed guys before but what he really wants is to be fucked. Plenty of extremely hot arse play tells me he's not shy.. that fist slid in up to my wrist and all he wanted was more. We plan on going to some intimate fetish parties reeeallly soon, but we'd love to talk with or meet other couples/bi guys who have experience with mmf. It seems much easier finding playmates for mff but it's not what we're into. My focus is to make sure my partner has the most amazing time possible with a guy that will understand the importance of the first time experience. I am a voyeur at heart so ideally we would begin with all of us during foreplay, and then me/possibly his partner lying back and watching them together. It fulfills both our very long term and mostly repressed fantasies, but we're prepared to (impatiently) wait for the right couple or bi guy. I know he's out there somewhere...