First Condom

A young couple decide to have sex for the first time so they go to the store to buy condoms. They find a popular brand and bring it to the register. The price on the box is $1.00 but when the cashier totals up the price it comes to $1.07. The couple asks what the extra 7 cents is for. The cashier replies back "tax." Then the young man says "I was wondering what held it on.