New Motorcycle
There's this guy who's in the market for a used motorcycle.  Always
wanted a nice big hog. So  he's shopping around, answering ads in 
the newspaper, and not having much luck. One day he comes across a 
beautiful classic Harley with a "for sale" sign on it.  
Upon inspection, he is amazed to find the bike in mint condition.  
He inquires about it with the owner:  "This bike is beautiful! 
I'll take it. But you gotta tell me how you keep it in such good
shape.""Well," says the seller, "it's pretty simple.  Just make sure
that if the bike is outside and it's going to rain, rub Vaseline on 
the chrome. It protects it from the rain. In fact, since you're 
buying the bike I won't need my tube of Vaseline anymore. Here, you 
can have it."  and he hands the buyer a tube of Vaseline.  So the 
guy buys the bike and off he goes, a happy biker. He takes the bike 
over to show his girlfriend.  She's ecstatic (being a Harley fan).   
That night, he decides to ride the bike over to his girlfriend's
parents'house. It's the first time he's going to meet them and figures
it will make a big impression. When the couple gets to the house, the
girlfriend grabs her boyfriend's arm.  "Honey," she says, "I gotta tell 
you something about my parents before we go in. When we eat dinner, 
we don't talk.  In fact, the person who says anything during dinner 
has to do the dishes." "No problem," he says. And in they go. The 
boyfriend is  astounded.  Right smack in the middle of the living 
room is a huge stack of dirty dishes. In the family room, another huge 
stack of dishes. Piled up the stairs, dirty dishes. In fact, everywhere 
he looks, dirty dishes. They sit down to  dinner and, sure enough,
no one says a word. As dinner progresses, the boyfriend decides to take
advantage of the situation. So he leans over and kisses his girlfriend.
No one says a  word. So he decides to reach over and fondle her breasts. He
looks at her parents, but still they keep quiet. So he stands up, grabs his
girlfriend, strips her naked, and they make love right on the dinner
table. Still, no one says a word.  "Her Mom's kinda cute", he thinks. So he
grabs his girlfriend's Mom and has his way with her right there on the dinner
table. Again, total silence.
Then, a few  raindrops hit the window and the boyfriend realizes it's starting 
to rain.  He figures he'd better take care of the motorcycle, so he pulls the 
Vaseline from his pocket.  Suddenly the father stands up and shouts:  
"All right, all right!  I'll do the damn dishes."