Murphy at Paddy's house.

Murphy calls to see his mate Paddy who has a broken leg.
Paddy says, ''Me feet are freezing mate, could you nip upstairs and get my slipper?"
''No bother'' he says and runs upstairs.
He entered the bedroom and Paddy's stunning 19 year old twin daughters were sitting on the bed!
''Hello girls, your Dad sent me up here to shagg ye both.''
''f*** off ya liar'' they said.
''I'll prove it'' said Murphy,
So he shouts down stairs... ''Both of them Paddy?''
''Of course ya prat, whats the use of f***in' one?"