AshleyMKOlsen091907.jpgMary-Kate Olsen MKOLSEN091907_03.JPGThose sexy, black Gladiator shoes on one, that teasing cross necklace on the other... how can you not love the Olsen twins? Mary-Kate and Ashley were out partying in Hollywood last night, and guess what? They were actually together! Pretty rare for them - usually they like to stay separate. Probably because it's easy to confuse one for the other! But not these days; MK totally has her own look. Who do you think is the sexier Olsen twin?