Bob had broken his leg and his buddy Scumbag Steve comes over to see him.
Scumbag Steve- "How you doin?"
Bob- "Fine. Hey do me a favor, go upstairs and get me my slippers. My feet are freezing."
Scumbag Steve goes up and sees Bob's hot 19 year old twin sisters lying on the bed.
He says, "Your brother sent me up to have sex with both of you."
They say "prove it."
Scumbag Steve shouts downstairs "Bob.., both of them?"
Bob shouts back "Of course!! Whats the point of fucking one!?"