Like, let’s be real. Tom is chunky (also probably 900 kilos of pure cuddly muscle). Sabine is chunky (and while she isn’t 900 kilos of pure cuddly muscle given the Chinese mums I’ve known she’s probably several dozen kilos of pure badass). Marinette should be chunky too, instead of rail-thin like her model is in the show.
In addition to that she probably helped around the bakery when she was a kid, which opens up the possibility of a bunch of heavy lifting, which tends to build big muscles rather than the whipcord endurance build that she appears to have in the show.
I just really, really need chunky Marinette (as in she’s chunkier than Adrien) that could deadlift Kim with one hand
(and looks like it, mind)
and I’m willing to rationalize any explanation to reach that conclusion, reason be damned.
Addendum: I also need beefy Marinette, stocky Marinette, fat Marinette, Marinette that isn’t so thin she could probably fit between the bars on one of those grille drains, Marinette that looks like a powerlifter, Marinette that looks capable of crushing a watermelon between her thighs, Marinette Marinette chunky Marinette.