There is something about a young girl's coming of age where she can't control her bratty emotions and teenage sex drive! All she wants is sex; whether it's her step-dad, step-brother, step-sister, or even just to prove a point. She wants what she wants. And she wants it now! This leads to some awkward extended family relations. Don't let Mommy find out, unless she is the one instigating. Because with a Bratty sis in the house, anything can happen!