I find that when using Vicky (as awesome as she is), my renders end up with stick legs making them look pixie like, or like they are from an anime movie. I have no trouble adding some girth to the thighs and calves, however the knees remain thin, making the legs look ridiculous. Is there a way to add mass to the knee area?

Yeah, Vicki always has fashion model ankles and knees, even when she's overweight - ridiculous! The only solution I know of (I struggle with this problem too) is to size up x amd z scale for shin and thigh, say up to 115% or even more, then bring down the thigh and calf girth a little by using small negative values on thigh width, calf bulge etc. :]FishNose

Vickie II, right? (Vickie I doesn't have the required morphs). I didn't think the knees were too bad far off if you used the dials to thicken the thighs and the one to pump up the caves, the default Vickie does have sort of chicken legs. ;-) Or you could try Blackhearted's character Angelia (sp?), which is (I think, still) in Free Stuff or (dare I say) Blachearted's for-sale figure or Supermodel Morph Vickie (also in the store), they all have nice legs (and knees!)