Bondage with intense forced orgasms. The public sex stuff is hot but you can always get more creative in your bedroom and my experience in public is limited. I am not a multiple partner person so that is out as far as fantasies go. Nope, it would have to be bondage with toys. Her bound, cuffed, blindfolded, with a Hitachi and jelly dildo in my hand, her ass plugged. Yeah, that is probably the hottest I can think of that I wanted to do and then did.
I am too much of a smart ass to ever really get into role-playing and women I have been attracted to tend to be as well, so if I come and knock on the door with my dick in a pizza box, I am sure we would just laugh and laugh and laugh when she says ‘Umm. Something is wrong. I am sorry but I ordered the extra large sausage’.