The dirty Josef is when you fuck her ass doggy style and nut in her ass then pull out and let it dribble down. As it dribbles down you catch it in a cup, sprinkle some hot sauce on top and she shoots it down.
When you are in a connected line of sex eating each other's boners at 1am while ten girls are waiting in line for some action, harder than ever felt before in the universe with fucking all the way hahaha.