Mom's Guide To Sex 4. Explosive sex scenes of unbridled passions as naughty stepmothers teach teens things they never should. Amber's stepson hasn't been doing very well in school so when she catches the neighborhood slut sneaking into his bedroom, she decides to give the young pair a lesson they'll never forget. Krissy is not your typical stepmom; she fucks her stepson's girlfriend, then fucks her stepson and then fucks both of them at the same time - ...