Little Tommy, he was runnin' home from school  Had a look of love, almost like a fool  Sittin' in his room heart steaming like a train  Waitin' for his dad to help him save the day    He's found a girl, the first one in his life  Needs advise, daddy's always right  Here comes the car, now he's seeing stars  Guess who's gonna get a shock  Could put him behind bars    What mama don't know  Won't hurt her, hurt her  What mama don't know  Won't hurt her    Probably thinkin' what's mama got to do  With the story Tommy told  To daddy's payback news  Papa fooled around, in his younger days  Now Tommy's brand new love, is sister Mary Jane    Tears runnin' down this heartbroken face  Daddy tries, tries to ease the pain  Says "Tommy listen up to what I've got to say  Don't let your mother know, or hell is on its way"    What mama don't know  Won't hurt her, hurt her  What mama don't know  Won't hurt her    Tears runnin' down this heartbroken face  He's gonna pack, and leave this place    Now mama knows  It hurt her, hurt her  Now mama knows  It hurt her  Now mama knows  It hurt her, hurt her  Now mama knows