Taxi driver

A woman and her 12-year-old son were riding in a taxi in Detroit. It was
raining and all the prostitutes were standing under awnings. "Mom," said
the boy, "what are all those women doing?" "They're waiting for their
husbands to get off work," she replied. The taxi driver turns around and
says, "Geez lady, why don't you tell him the truth? They're hookers, boy!
They have sex with men for money." The little boy's eyes get wide and he
says, "Is that true Mom?" His mother, glaring hard at the driver, answers
"Yes." After a few minutes the kid asks, "Mom, if those women have
babies, what happens to them?" She said, "Most of them become taxi
drivers."

So this hooker hails a cab, gets to her destination, cab driver asks for the fare and she tells him she has no money.
Cabbe driver says "How you gonna pay me?"
She puts her feet up on the back seat, pulls up her skirt, slips her thong over to the side and says "How about we just put this on Mother nature's credit card?"
Cabbie says, "You got anything smaller?"

(rim shot)