Includes distant 18-year-old stepdaughter into the arrangement and allows her to use his car for anything as long as she represents sexually

Everyone should have a once-in-a-lifetime experience, and I had a bet with my 18-year-old stepdaughter that if I let her use my Ford car as frequently as she wanted, she would drop her boyfriend and his friends. Little did she know that I had signed a different kind of deal here, the coital contract, ‘We’ll have sex whenever I say we will!’ Family taboo at its finest.