A guy was around a mates house before having to go and meet his girlfriends parents. They were checking out his motorbike and the guy wanted advice on how to keep it from having streaks left over after the rain. His friend had the answer.. Vaseline...just rub it on quite thinly as its about to rain.

So he rides off to meet his girlfriends parents on his motorbike, with a small tub of vaseline in his jacket pocket in case the weather looks grim. As is girlfriend opens the door, she says "Come in and these are my parents." he replies "Hi, nice to meet you." then is girlfriend says "Look at dinner we have one rule, who ever speaks first, does the dishes." and so he sits down to dinner and not a word is uttered. He kisses his girlfriend and the parents don't say a word.. He then starts to finger her... but still not a word is uttered. The he grabs her, lays her out on the table and screws her right in front of her parents... Still not a word said. The guy thinks... right lets see how far I can take this... and then he starts screwing his girlfriends mother. Nobody says a word.

Suddenly as a chance glimpse out the window would show him that there were really grey clouds and the guy thinks... CRAP... my bike. And he gets the vaseline out his jacket pocket... to which his girlfriends dad says "OK OK, I'LL do the washing up!"