Three boys are sitting across from an exotic car dealership...

Admiring the cars, when a genie pops out of the sewer and offers them each a wish.
The first boy says, "I want a Porsche!"
The genie nods and a brand new Porsche appears in the road. The kid gets in and drives off.
The second boy says, "I want a Rolls Royce!"
Again, the genie nods and a shiny new Rolls appears. The kid jumps in the car and drives away.
The last kid thinks about it for a minute. He finally looks up and says, "I want my body entirely covered in hair."
The genie nods and every inch of the kid is suddenly covered in hair.
Feeling a bit confused by the last request, the genie asks the kid, "Why do you want to be covered in hair?"
The kid holds his hands up with his fingers making a small circle. "Well, my sister only has a patch this big, and she has both of those cars!"