Bob had broken his leg and his buddy Mick comes over to see him.
Mick: How u doin'?
Bob: Fine.....Hey do me a favor,go upstairs and get me slippers.My feet are freezin'.
Mick goes up sees Bob's hot 19year old twin sisters lying on the bed.
Mick: Your brother sent me up to have sex with both of you.
They were shocked a bit and said...'prove it'
Mick(shouts downstairs): Bob.... both of them?
Bob(shouts back): Of course!!...Wats the point in fucking one??