I can't believe this man
  Maybe I should ask her
  
  I already know
  I smell the sent in the carpet
  I already know
  When we walked threw the door
  Should have known, Should have known, Should have known
  I already know
  That you do baby
  I already know
  It's all threw baby
  When you walked threw the door
  It was late when you did it
  Oh baby
  Oh, I should have known it was scannin
  Oh baby
  What you do, What you do, What you do
  Oh baby
  I should have known better (Should have known better)
  Oh my baby