Robby's mom got married and is taking a 3 month honeymoon and Robby is going to live in the mountains with his bohemian grandmother. Grandmother has been divorced for 10 years and is always horny. Robby helps her with her sexual problems.
15 year old Mark was disappointed when his dad couldn't take him camping but then his neighbor, 30 year old Patty volunteered. When Patty and Mark share their camp site she decided to teach Mark all about sex. On the fourth day, when they are screwing Marks mom shows up and catches them. Finally mom decides to join in with her son and neighbor. Let the fun begin.
Before her husband passed away, Donna and her husband had discussed how he would enjoy seeing her with two men at one time, which she fantasised about too. She did not think that it would ever happen now, until her two sons realized that they wanted her as bad as she wanted them - both at the same time.