The act of taking your girlfriends panties, which have to be green, masturbate with them and blowing your load all over the insides, then putting them back on her, and fucking her through them, thus lubricating her insides with your semen. Afterwords doing the process again but for the other hole
Boy 1 : Gurl, i totally
gave my girl a pickle panty, felt so right
Girl 1 : Pickle Panty?
Boy 1 : Care for a demonstration?