Father has 2 pretty, young twin daughters who are just getting interested in boys and sex. Father realizes this but doesn't want his baby girls to play around with teenage boys so tells their mother that she needs to do whatever is necessary to prevent the teenage boys from trying to have sex with the daughters. Mom decides the best way to do that is to make herself avail to the boys whenever they get horny. The daughters decide that they still want to know what sex is like so come up with a plan to seduce their father.