Fetch me Slippers

Murphy calls to see his mate Paddy who has a broken leg. Paddy says, 'Me feet are freezing mate, could you nip up stairs and fetch me slippers?'

'No bother' says Murphy, and runs upstairs.

There, sat on their bed, are Paddy's stunning 19 yr old twin daughters. 'Hello girls, your dad sent me up here to shag ya both.'

'F*ck off ya liar' they said.

'I'll prove it' says paddy. So he shouts down the stairs 'Both of them Paddy?'

'Course' he says 'What's the use of f*cking one of them.'