Taking Advantage

I was cuddling with my S.O. the other day and he told me that it was weird that I don't "take advantage" of him. I'm usually the most shy around him soon I try my hardest not to let him see my monstrous freaky side. I asked him if that was what he really wanted and he told me yes. So I wonder is "taking advantage" the same as dominating? If so then I have been thinking of grabbing him roughly and squeezing him hard enough to make him scream, but only when he's unaware. 😈😈😈