Lightnings Eating Problem..

[Mezolitik]

She's thin, but not THAT thin imo.
Has the figure of a typical Asian woman.

I think this is the reason all FF characters look skinny to us morbidly obese Westerners; their motion capture actors are probably Asian...but they generally have Western heads and faces. Mixing up the body types makes people look kinda strange.

Lightning's thigh gap makes her look like she's been built wrong though - like her legs and arms are attached to the corners of a rectangle. Nobody has 30cm between their thighs!