To describe her hotness....one must understand her character.
Darcy is a graduate of M.I.T---where she graduated 4th in her class. All of her other classmates are in space....or so she says. And while this brilliant woman may be the smartest hot chick we will ever see----she is stuck working as an assistant to some young goofball. Meanwhile, she holds 2 other side jobs as a caterer and standing on the corner in a hot dog suit holding arrow point to some random resturaunt.
Imagine this degrading lifestyle and knowing that you are better than that. Imagine all the fustration building inside you. All that rage. Imagine channelling all that rage into raw sexual energy devoted to the single purpose of pleasure.
Now in my mind---I imagine Darcy to loathe the white man......yet because she is surrounded by them all day---she is oddly attracted to them. Take this hate-fueled attraction and turn it loose and you have a hot asian girl who is ready to pounce at the opportunity to slap you around while getting it on. That's hot.