Nancy Sweet, lonely, unfulfilled widow happens to see a friend of her son's hitchhiking and picks him up. Thus begins a new chapter in her life devoted to doing the bidding of this young man, beginning with being stripped naked, as she drives them both toward home. (See my blog about this.)
Mom's not bashful when it comes to breast feeding her daughter. More then once her teenaged son watches. When he finally races to his room one night she knocks at his door only to find his sheets tented upward at his waist. You'll have to read the rest to know not the what but how it goes from there.