No invitation necessary...

Superbly gay male DJ: " I like your boyfriend." Me: "Awesome! And he's not my boyfriend. [Bends down to fiddle with purse straps, then jokingly adds:] So if you like him, feel free to-" [looks up from fiddling with purse to see superbly gay male DJ wrapping arm around waist of unsuspecting straight male friend.] Me: "Oooo-kay."