A thirty-something man and woman sit next to each other in the back row of a movie theater. They've never met before, but that doesn't stop her from taking notice when she realizes his hand is on his crotch. It's one of those risque French films and he's rubbing his cock at the sight of the topless heroine on screen. Instead of being disgusted or appalled, the sight of him masturbating makes her wet and she leans over to give him a helping hand. Before they know it, she's on his lap and they're trying to fuck under everyone's noses. It's dark and the seats directly to the sides of them are empty, so their debauchery goes mostly unnoticed, except for the guy on the end who realizes what's going on and wants his share.
Threading, please. I'll play either the man or the woman, but I'd like to jointly NPC the second guy in either case. PBs can be discussed, but I'm not looking for teenagers here! Bonus points if one or both of the main characters are married.