After a five-year absence and learning of her ex-husbands death, Bette moves back to town to live with her son and brother-in-law. Bette and the Uncle get it on together and decide that they want to get married. A love triangle grows between Bette, her son & the uncle and the three of them live 'together' as a threesome happily ever after.
A boy grows up with the forbidden love of his little sister and discovers he loves to be nude. Knowing he can never have his sister, he joins the Navy and is away from home for 20 years. When he retires, he rescues her from a bad marriage and has her move in with him. That is where they finally admit their love for each other.
While home from school on vacation, 16 year old Terry finds the girl of his dreams and after his mom comes home from being raped at an X-rated movie, Terry finds enjoyment with her too.
How a brother lusted after and fell in love with his little sister, only to find out years later that she lusted and loved him too. Now that they are living together, she gathers a harem for him to enjoy. Life is good.