Sandpaper Sally

This very horny guy walks into a whore house. He walks straight up to the mistress at the front desk and says "Look I'm really horny, I haven't had sex in a long time give me one of your whores." The woman at the front desk says I'm sorry they are all booked right now, if you come back tomorrow"....the man says "I don't care who it is I just need to, I really don't care." So the lady says "Ok, we have an open room at the top floor." He goes in there promptly and starts having sex with the girl, but he stops and says "I'm sorry I just cant keep going, your just too dry..." So the whore says "K, I'll be right back." She goes into the bathroom and a few minutes later she comes out and they resume. The guys is amazed because it is wet and pleasurable now. He asks "What did you do?"

"I picked the scabs."