Paddy and Mary decide to try a 69.
Paddy's never done one before so Mary says she'll show him.
She tells him to lie On the floor and squats over him.
As she lowers herself onto his face she farts, apologizing she tries again but farts again.
Paddy jumps up and storms out yelling...
"I'll be fucked if I'm hanging around for 67 more of them !!!"