Slappin' a girl in the face with your dick repeatedly until it leaves a welt. Then, soothe the welt by dragging your sack over it repeatedly.

Caution: If the welt doesn't go away within ten minutes, the scrotum juice isn't being extracted. At this point shave your nuts.
Mr. Carl's girlfriend was tired of the usual Charizard and muffpunch. She didn't regret her decision to let Mr. Carl use his hot mizuno batbag to spice up the bed. She left an upperdecker afterwards.
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