What I like about most of the women on this show is that they're a bit thicker than most (save for that huge disgusting whale in the KEEP WEIGHT shirt) but still shaped like women (unlike said whale). Breasts, waist, hips, etc look correct.
Makes them look comfortable and inviting. Do want. And I think the chubby black-haired one has a really cute face. I'd wake up next to her anyday.