As I mentioned the other day, Hilary Duff is vacationing in Hawaii, so there was a good chance that we would have the pleasure of drooling over the Duffster in a bikini. Well, we haven’t received any full-blown bikini pictures yet, but the Duffster did tweet these two photos, one of which she is wearing a bikini top, and the other featuring her sexy legs and gummybear thighs while suntanning in a robe. To be honest, all these photos do is make me yearn for Hilary Duff bikinis that much more. I mean, just a glimpse of her huge bikini cleavage is making me weak at the knees. Alright, enjoy!