(Thank you -- yes one is 14 all of their 15th year -- duh!) The true exploits of fictional 14-year-old Lisa. In the first chapter, Dec. '67, she finds a box of her parent's sex toys and explores their use with her brother George and her girl-cousin Jamie. The three also spy on Lisa's parents. In Jan. '68, her cousin Paul joins the fold.
It's a new world, where only roughly one in a hundred of the opposite sex can give you an orgasm. You need one every month or so or you'll start feeling really bad. Times are good for those who make a great many of the other sex happy, not so good for the ones who have trouble finding any partner at all.