You'll get hooked, you'll get drugged She'll be your essence, she'll be your blood And you'll want her more and more, but you'll never get enough And that's the first rule of love She'll smell so sweetly in the morning She'll make you feel so good inside And you want her so much, you'll give everything else up And that's the first rule of love ♪ You'll grow comfortable together You'll start to fit like hand in glove And then you'll start to hate the men that she used to dream of And that's the first rule of love And you'll miss her madly when you're apart Love is like gravity holding down your heart ♪ You'll grow envious and bitter And she'll be enquiring and concerned And you'll feel so close to her, but never close enough To get past the first rule of love And with the awkwardness of strangers You will finally give up No exceptions to the first rule of love No exceptions to the first rule of love (oh, yeah)