Just let a huge fart rip
They'll hear the sound of your flatulence freeing itself from its anal prison, realize you'll be vacating your bowels pretty soon, & immediately think about occupying your soon to be empty chocolate holding cell with their felonious dikk.
If you're kulo is really stretched out remember to clench your cheeks together so the fakkit is tricked into thinking your still got that rectal snapback.
No homo of course.
Edit: Wrong smiley after the no homo. Should be