"Prostitution" joke

A husband and wife were having difficulty surviving financially
so they decided that the wife should try prostitution as an
extra source of income.
The husband drove her out to a popular corner and informed
her he would be at the side of the building if she had any
questions or problems.
A gentlemen pulled up shortly after and asked her how much
to go all the way. She told him to wait a minute and ran
around the corner to ask her husband. The husband told
her to tell the client $100. She went back and informed the
client at which he cried "That was too much!" He then
asked "How much for a handjob?" She asked him to wait a
minute and ran to ask her husband how much.
The husband said "Ask for $40". The woman ran back and
informed the client.
He felt that this was an agreeable price and began to remove
his pants and underwear. Upon the removal of his clothing
the woman noticed that the man was well hung.
She asked him once more to wait a moment. She ran around
the corner again at which her husband asked "Now what?"
The wife replied "Can I borrow $60?"