An accident leaves six orphans behind, 3 males and 3 females. The oldest male/female pair of step-siblings are 18. They have to act as parents for the other two M/F pairs of step-siblings, aged 15 and 9. Of necessity, the new parents share the big bedroom, and loving shenanigans follow. Each 15 year old finds an outside partner; new irresistible romantic and sexual feelings can't be denied. More passionate adults become active family members. Active with each other?!