Also known as: むちむち, ムチムチ, むちむちボディ, ぽちゃり, むちましい, 丰满, プランパー, 抱き心地良さそうな極上の安産型ムチムチ女体, 小肚子, 抱き心地良さそうな極上のムチムチ女体, 丰满体型
Slightly chubby, but not enough to be Fat. A saying that goes around for plump is "Fat in all the right places".
The Japanese tags above are Pixiv's equivalent of the word, but be aware that not all Pixiv-centric uses of those tags fit Danbooru's definition. As with all other size-specific tags, observe the body and see if the tag actually needs to be used before adding it; make sure that the body is not simply “Curvy” and that it’s not “Fat”, either.
Plump is mutually exclusive with Fat and Obese.