Alternatively, Alice comes up with names for her breasts and/or vagina.
Alice names Bob's penis.
Subverted: Charlie asks Bob, "Have you named your penis?" Bob says, "No."
Double Subverted: But his girlfriend gives it a nickname anyway.
Bob has a conversation with his penis and it talks back!
Bob calls his penis Little Prick because it constantly backtalks and he doesn't want to punch himself somewhere it would hurt so badly.
Zig Zagged: When asked by friends, he says it hasn't really got a name. His girlfriend has a name for it, but he refuses to accept it. Then he finds out it is cool to name one's penis, and decides to adopt the name his girlfriend came up with after all.
Averted: Bob has no name for his penis or his testicles.
Enforced: The script writer wants Bob to say something about his dick, but he's not allowed to use "penis" or "dick" so he talks about "Little Bob."