I was thinking of this:
http://en.wikipedia.org/wiki/Lipedema
Re: that wiki page -
Dude! You're scaring me! God forbid... !!
At least, Mal appears to be relatively trim around the knees, calves, shins, etc., and for the degree of hip and thigh curvature she carries (and damn well, I might add...) she appears pretty firm there. Even in that weight comparison collage (earlier in this thread, the shot on the right) where she is at 180 lbs.
Hopefully similar to lovely London (as miners666 observes), Mal would escape such an issue.
Actually if you look at much of their recent photos, their thigh skintone is fairly similar.
BTW, further on to the health idea, recent reports about body shape/type comparisons observe that folks that gain weight around the waist tend to be at greater cardiovascular risk, while those that tend to remain slim-wasted and gain around the hips (hourglasses, etc.) seem to be healthier on that account. Both our girls here are moderately busty, surprisingly and pleasingly tight-waisted, and notably (some might say ideally) fuller structured about the pelvis and thighs.
Both Mal and London are two of my big faves (both are intelligent, vivacious, gorgeous, deliciously curvy), and I want only the best for them...
-D'Artagnian
PS - if you've watched them in video, you'll note they both also have really cool senses of humor... heck with all the typical sordid thoughts, I would just love to hang out with either (both!) of them and just bullshit over a beer...