 Baby Girl (Kim) just wants to live a normal teenage life but her overprotective brothers, Max (Carlos Agassi) and Brad (Bernard Palanca), think she should just focus on her studies. Her desire for freedom and the brothers  adamance are a constant source of conflict until the brothers stumble on a brilliant strategy - set up their baby sister with a harmless boy. Enter Sonny Boy (Gerald), who is rumored to be gay. The brothers  strategy boomerangs on them though, because Sonny Boy turns out to be as male as male can be.