I've been hanging out with Stacy Everybody thinks we're dating 'Cause I spend my weekends hanging at her house She's a part of the cheer team Top of her class and she's prom queen When we study chemistry She unbuttons her blouse But I got a secret I must confess It's not her laugh or the way she'd dress She's not the reason I've been thinking 'bout love Every weekend when we hang out I lose my cool when he's around And I don't know if this is just a crush How do I find the words to tell her? I'm in love with Stacy's brother (Oh, ha-ha) (Oh) (Oh) I'm gonna stay the night at Stacy's Don't know why my heart's been racin' 'Cause the whole school thinks we're gonna hit first base She's coming back from her cheer meet Told me to study for biology 'Cause she wants to show me how to get an A But I got a secret I must admit It's not her lips I want to kiss She's not the reason for the bruises 'round my neck Every weekend I'm sneaking out Through the window of her house And the truth is, it ain't Stacy I undressed How do I find the words to tell her? I hooked up with Stacy's brother (Oh) (Oh) (Oh) (Oh) (Oh) (Oh) (Na-na-na) Stacy, here's the truth And I don't want to seem rude You're not the only one on my mind I wanna be best friends But I don't want to pretend The way that I've behaved is a crime Oh, Stacy, I got to tell ya I'm in love with your big brother (Oh) (Oh) (Oh) (Oh) (Oh) (Oh) (Na-na-na, da-da-da-da-da) (Ha-ha-ha)