I've never been able to adequately describe why I like Nicole so much. She just has this je ne sais quoi quality about her. She is pretty, but it's weird because I don't particularly like blondes and I don't particularly like fake bewbs, but Nicole just has this calm, mature, and sultry aura about her that is irresistible. Most of the other women in game are so hyper or over bubbly or just flat out neurotic. Nicole, on the other hand, has a James Dean type of coolness that some people just have naturally, most don't. She's great in bed that much is true, but I think it's her demeanor even more than her looks that make her attractive to me.
Oh, and she does butt stuff on the first "date." Always an automatic +50 points from Kellermann.