Payback...
A man and his wife are in the shower together when the doorbell rings. The wife puts on a robe and goes down to answer the door.
In walks her husband’s friend Ben. The woman tells him her husband’s in the shower and asks if he can come back later. Instead, Ben steps in and quietly says, "I have £400 in my pocket. I’ll give it to you if you’ll open your bathrobe for me." She’s offended, but really needs the money so she agrees, opens her robe, and lets Ben have a quick look before doing it up again. Ben gives her the $400,
She then opens the door for him to leave, but he says, "I have another £400 in my other pocket. I’ll give it to you if you let me fondle your breasts." Now she’s really mortified, but again, she needs the money, so she undoes her robe and lets him have a fondle. Taking the other £400 from him, she lets him out of the door.
Going back upstairs, she gets back in the shower with her husband, feeling a little bit guilty.
"Who was that?" her husband asks.
"Oh, that was just Ben," the wife answers.
"Ben?" the husband says. "That b@stard owes me 800 Quid.!"