A chap meets a fat lass at a disco.
He chats her up, they get on well, so at the end of the evening she asks him back to her flat.
He’s not too sure because she is a bit on the large side but he thinks what the hell.
Back at her place they go upstairs and get down to the business.
He climbs on top. After a while he says, “Would it be OK if we turned off the light?”
She gets all uptight.
“You’re just like all the other blokes I meet. Every bloke wants to have sex but nobody wants to look at me because I’m so fat”.
The chap says, “No it’s not that, it’s just that the light bulb is burning my arse.”