When Malcolm was proven to be Lily 's father , he and Dru decide to keep it a secret and he left town .
Malcolm then demanded that Dru take a paternity test to determine once and for all if he is Lily 's biological father .
When father was proven to be Lily 's father , Malcolm and Dru decide to keep it a secret and Malcolm left town .
Malcolm then demanded that Dru take a paternity test to determine once and for all if he is Lily 's biological father .