So a guy pays a hooker for her services and as they start fucking, he realizes that she's not getting any wetter...in fact, it's so dry that it's actually rubbing the skin of his dick raw. He stops, explains this to her and she says, "I'll be right back...just have to go to the bathroom for something."
Five minutes later, the hooker comes out of the bathroom and they commence once again, only this time the man notices that it's extremely soft, smooth, and wet. He finishes rather quickly and as he's putting his clothes on, he asks her, "What did you do to make your pussy feel so much smoother after it felt so dry and rough?"
The hooker replies, "I pulled all the scabs out and let the pus flow."