Murphy calls to see his mate Paddy who has a broken leg. Paddy says, Me feet are freezing mate, could you nip upstairs an get me slippers?

No bother, he says, and he runs upstairs and there are Paddys two stunning 19 year old twin daughters sitting on their beds.

Hello dere girls, your Da sent me up here to shag ya both.

Fook off you liar!

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

Of course, whats the use of fookin one?