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Source Code
Random
A sex act where a woman (or man) eats a peanut butter cup right before performing pre coital fellatio on their sexual partner who is allergic to peanuts. This causes the mans member to swell to godly proportions he then inserts his grotesquely swollen Johnson into the woman's vagina or anus (or mans anus) causing other worldly pleasure for the woman (or man).
yooo girl your boys allergic to peanuts you gotta try some of that peanut butter cup cock !
when you slap your dick onto a melted reeces peanut butter cup to cover your dick in peanut butter and chocolate
My girl only likes oral sex with a Peanut butter cup cock