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 paddys stunning 19 yr old twin duughters. 'Hello girls, your dad sent me up here to shag ya both.'

'Fuck off ya liar' they said.

'I'll prove it' says paddy.

So he shouts down the stairs 'Both of them Pat?'

'Course' he says 'What's the use of fucking one of them?' (",)