1. Her official art is one interpretation, and part of the fun of fanart is getting to see new and different ways people see her (this is something the cast has said they actually love about fanart)! People draw Jester in different outfits, with different hairstyles, different shapes of horns, different heights, and different weights.
Itâs no different than how some people draw Nott with huge sharp teeth and bulging eyes (Sam has said he LOVES seeing âugly Nottâ art) despite that not being in her art, or drawing Yasha as 6â˛5, or drawing Fjord as a skinny twink, or drawing Beau with huge biceps, or drawing Caduceus with longer or shorter or differently-parted hair.
2. âjester is a pretty slender figure that is mostly muscle. because she is super strong.â
MENG SUPING, world record holder for 188 kilos/414.5 lbs clean & jerk (enough to lift a piano over her head)
HOLLEY MANGOLD, lifted 110Â kilos/242.5 lbs (snatch) and 145 kilo/319.7 lbs (clean & jerk) at the London 2012 Olympics
SHAIMAA KHALAF, lifted 153 kilos/337.3 lbs (clean & jerk) at the 2017 Weightlifting World Championships in Anaheim
Or how about MARIAM USMAN, with a clean & jerk personal record of 155 kilos/341.7lbs set at the 2014 Commonwealth Games in Glasgow?
Big women can lift more than thinner ones. Thatâs a biological fact that athletes, coaches, and scientists all know. Itâs why the sport is divided by weight classesâ itâs not fair for a 5â˛4 110-pound girl to lift against a 5â˛4 170-pound one, because sheâll get her ass handed to her by the most basic laws of the universe: physics.
Of course, thereâs exceptions to every rule, and strength is a subjective thing from sport to sport (these women wouldnât do well in gymnastics, for example, or surfingâ two more sports that also require a great deal of strength). I used weightlifting here because âlifting/swinging/moving heavy thingsâ is the core purpose of the Strength ability score, whereas many other sports focus more on things dealt with by Dexterity and Constitution in D&D.
So, to cite âsheâs strongâ as a reason why Jester canât be fat? My problem with that isnât that itâs mean (although it is a bit of a dick thing to say), itâs that itâs straight-up incorrect.
TL;DR: Fanart doesnât have to match up with âcanonââ thatâs sort of the pointâ and the strongest women in the world are plus-size anyways.