Mary and Jane were having a cup of coffee together and got round to discussing their sex lives.
Jane said to Mary, "A strange thing I have noticed, after sex my cunt starts twitching for a few minutes, does yours ever do that"?
Mary shrugged her shoulders and said "No mine just coughs and scratches his balls".
Jane taken aback says "Mary, you do surprise me, never thought I would hear you describe your beloved as a cunt Mary thought for a while and then replied. "Yes, I suppose you are right, cunts are useful".