This is a love story, and I really and truly love a good love story. Samantha is Angie's mother, and they both love the one man in their lives, Sam's husband and Angie's Daddy.
Sam realizes that Angie really loves her Daddy, emotionally and sexually, and is willing to step aside if that is what father and daughter really want. So, Daddy and Angie 'get it on' shall we say, and they still want Samantha as the third member of their loving family, and all Samantha wants, it seems, are grandchildren from you know who!
Forget about the Porsche that becomes a jeep, or the nude beach that becomes a very private beach and just enjoy!