I've got a vid someplace of a girl who's at a restaurant with her parents and her husband. She gets a text message that informs her that her old boyfriend is in the restaurant and wants to see her.
Long story short, they go to the men's room and she gives him a blowjob, which he records on HER smartphone, and she texts it to her husband while he's sitting with her parents at that table. Five minutes later she returns "grinning" and he was "smiling" as well.