The Dirty Bubble Challenge

The Dirty Bubble Challenge is formally known from spongebob, but in this definition it is used quite differently. The Dirty Bubble Challenge is a sex position where you flip your girl upside down and spread her legs, then for a whole week repeatedly smack her asshole while jerking off, all while screaming darnit after every smack

Hey bro! I just finished the Dirty Bubble Challenge with Jessica last week and man, that shit was great