I know what they say about it not being your fault; that you are the victim and are in no way responsible when someone forces you to have sex. Still... I would still be a virgin if only I had not taunted him so.
John and Mary Story decide that their eighteen year old son Sam, though admirably mature, is lacking in one crucial area of his education. He doesn't relate well to the opposite sex, at least in one-on-one situations. The decision is made, mostly by Mary, to help Sam develop that ability with the aid of an older female tutor. The plan succeeds all too well.
A "sweet sixteen" party ends up with him deflowering his daughter and her best friend, and screwing another teenager that weekend. In the second chapter, they all join a swinger's group for non-stop weekend sex. The third chapter features their latest member, a fourteen-year-old nymphomaniac with a sordid past as a "sex slave" to two men.
John's sister's husband may have been a bastard, but he knew how to throw a party. His sister invited John to a party on that turned out to hold more than a few surpises.