Pai de Família (Portuguese for “family man”) is a man from a Brazilian gay porn video. Pai de Família’s real name remains unknown, but he’s often called Jailson Mendes, as he’s credited in the movie. Pai de Família’s main claim to fame is, well, taking it in the ass.
Family Jewels is slang for a man's penis and testicles, which are important for having a family and also for sex. The sperm is stored in the testicles! Also, getting kicked in the family jewels hurts a lot!
Bully: Eat dirt!
Bobby: That's my purse! I don't know you! *kicks Bully in the Family Jewels.
Bully: Ahhhh!*Collapses to the floor.