The mother used to be a cheerleader, too. After mother and father get home from their night out, mother and babysitter talk about their routines, decide to do one together, get a little closer than they expected, and.... kiss. And them more.
Then dad comes in from parking the car and catches them......
I figured, based on the title, it was going to be a series of twists.
However, it turns out the cheerleader was actually the pastor's daughter!
Who was also the sexy lifeguard who saved the wife last summer!
Who will time travel back in a few years to be the stripper at the husband's bachelor party!
Though only later does she find out that she is the daughter of the husband's long lost stepsister who he lost his virginity to before she mysteriously vanished/disappeared to begin a long, questionable revenge plot!
Then it turns out that her mother was secretly the mom's long-lost sister, who she was on bad terms with when their parents split!
But then it turns out that she actually is from a group of identical triplets, and her sisters are the mom's yoga instructor and the student intern at the dad's office!
And then it turns out that one of them is a vampire!