Montana Carwash

Guy gets on top of his partner in the missionary position, but then slides his entire sweaty body across her face, pissing as his junk crosses, wiggling his junk back and forth to simulate an automatic carwash. Finish with a giant fart as the asshole crosses for a blown dry spot-free finish!

(Variation: Reverse Montana Carwash: You get the idea.)

Donald Trump's hair gives the most interesting sensation during a Montana Carwash!