Dolly "Show Me Yours"

Dolly is your best friends very hot very slutty sister, you are waiting to go out with him but he isn't back yet so you wait with his sister in the front room. You cant help but notice that she has a great pair of tits and she very quickly realizes what you are looking at but instead of telling you off she tells you to get your throbbing dick out and have a hard wank while she shows you her tits and talks the spunk out of your bollocks!