Dirty Nikko
A Dirty Nikko is when you tell your girl close her eyes, then insert each testicle separately into the vagina and anus. After doing so, put each one in her mouth and have her guess where each one was.
Oh my God Karen after last night's Dirty Nikko, Joe's been dipping his balls in everything and asking me to guess where they've been. I had to put a lock on the refrigerator!