When you're banging a girl with a trachea hole and cum with your cock inside of the hole, causing your cum to go directly into her mouth. She then swallows your kids with your member still politely rested within her esophagus, resulting in the semen landing on your ding dong. You them pull your cum coated cock out from her trachea hole and into her gaping mouth. She then sucks off the goop on your peen and swallows it once again, this time with her stomach as the final resting place of your potential children.
"I fucking love morbidly obese bitches with medical problems so that I can give them a good ol' Bellevue Oil Change. Smokers aren't so great for an Oil Change though, it's kinda like rubbing sandpaper on your dick."