Oregon Trail

While slamming a girl in the ass, pull out as soon as her crap is comming out.
Drag your dick from her anus, through her ass crack, between her tits and to her mouth, while making sure you leave a solid trail of shit over her body.
Celebrate the end of the journey with a rough deep throat.

"I gave Sally the good old Oregon Trail last month, but she died of cholera after the journey."