Its World War Two. Johnny is in trench when he has an overwhelming need to take a shit.

He goes over to his Sergeant and says, Sarge, I really gotta take a dump and theres no where around here to go. So Sarge replies, head on over to that clump of bushes, Ill cover ya. So Johnny runs over into the bushes and is gone for three days. When he finally gets back, Sarge is furious he demands to know what happened. Johnny explains that after finishing up in the bushes, he started to come back but dropped into the wrong trench. In the trench he found a beautiful naked woman that he spent the last three days f**king for all she was worth. They did everything, between the tits, in the p***y, and the ass. When Johnnys finished his tale, Sarge asks Did she give you head? Johnny says head? No, she didnt have a head.