Insulting joke

Ultimate Insult...!!!
A woman & her son were riding
in a taxi.
All the prostitutes were standing
at a bus stop.
Boy: Mom, what are these women
doing here?
Mom: They are waiting for their
husband.
Taxi driver: Why don't you tell him
the truth, that they are hookers &
have sex with men for money.
Boy: Is that true Mom?
Mom: (Glaring hard at the driver)
says, YES.
Kid asks: Mom, what happens to
the babies these women have?
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Mom: They become taxi
drivers...!!!