Cock and Ball Torture (CBT) is a sexual activity involving the torture of the male genitals. This may involve directly painful activities such as wax play, genital spanking, squeezing, ball-busting, genital flogging, urethral play, tickle torture, erotic electrostimulation or even kicking.
Just imaging the feeling of making her squirt and scream, covering all of you with her pussy juice, and then penetrating her hard and fast, which she will barely be able to handle, finishing with cumming deep into her underdeveloped vagina. Imagine the pressure she'd feel with that big monster cock in her fragile little body. And the guilt and the trauma. Mmmmmm