Like, I'm all for this kind of content existing, but I cannot fathom how this mod is fully "sfw" or how it is still up on Curseforge. Some of the mobs are great for that, but some of them are like...blatantly suggesting nakedness and nipples with their conveniently placed "spots". Also the ender puffs...lul.
Viewing post in Monsters&Girls - Chubby Tummies comments
Mushroom girls were never meant to have nipples. The spots are meant go kinda remind of bra. Also ender puffballs got changed in base version of mod, just so they are now less suggestive.
Overall, m&g is a kinda suggestive mod at most, and not fully nsfw. It's meant to be cutely thicc and not openly sexual.