It wasn't her sexuality (I honestly forgot about that - I've only seen most of the episodes once so far) or even the leather that I found so attractive, it was more her personality, her confidence and the way she carried herself. I kind of wish the Ezri character was originally written with those qualities. I guess that would have been seen as a cheap attempt at a last minute ratings grab. Or maybe the people in charge think good looks is enough for sex appeal, they can then write whatever personality they want.