Teen virgin Donna gets a lesson in love from both her brothers after watching her mom and dad have oral and then anal sex. After finding out what sex is about she gets it on with anyone and anytime she can. She also learns that there is going to be some big family problems when her brother and his fiancee get married in a couple of weeks, when her uncle comes to the wedding. What would it take to fix it all?
In desperate need to use the toilet he enters the bathroom while his sister is bathing. Her request for him to wash her back seems natural, and so is what followed.
Bobby's afraid they're going to commit incest. Terri explains why he doesn't need to worry. Then she explains it again. Then she explains it again. And again. And... well, you'll see.