Salt of the earth Steve and his more sensitive friend Peter cook up a plan to each get a threesome involving both of their wives, not knowing that the girls are already in a sexual relationship. Amber and Brit decide to show them a good time but previously unexplored emotions complicate things.
Jason is furious at being sent to watch his younger half sister while she vacations with friend. He soon gets over his anger when he sees his baby sister all grown up.
A Aunt May Story Billy screws up and his Aunt decides to spank him leading to sex and a spanking of the aunt. Later Billy's girlfriend becomes involved.
A sequel to Weekend at Grandma's. Amber has now gone on to college and sorority life, where she has several things to consider, her love life, her swinging, and her future.