Wrong use of the word 'Fuck'

Wrong use of the word 'Fuck'.

Wife has broken her leg & her Hubby comes after work.

Hubby How r u doing??

Wife: Fine.

Hey, do me a favour.. Go upstairs & get me my slippers. My feet are freezing!

Hubby goes upstairs & sees Wife's hot two sisters lying on the bed.

Hubby: Ur sister sent me up to have sex with you girls..

Sisters: Prove it!

Hubby (Shouting): Hey Honey.., both of them ??

Wife: (Shouting back): Of course! What's d point of fucking one???...

Absolute Classic!!!