This is very similar to Rock Me by Cherrie Lynn. Bad boy, tattooed (and tattoo artist) Rule is a self-proclaimed manwhore. Shaw is pre-Med, blonde, innocent, and has been in love with Rule since she was 15. Everyone thinks she was Rule's now dead twin's girl, but she has always been in love with Rule. He never noticed her lust for him until one drunken night (and one scandolous outfit) changes everything.

Again, so very similar to a different book I've already read, but it was ok.