In a broader sense, this art style is part of a movement toward body diversity in digital illustration:
: The popularity of these tags reflects a growing demand for inclusive character design in the "OC" (Original Character) community. Chubby girl maker!
If you are looking for an "interesting paper" in the sense of a structured analysis or a creative deep-dive into the aesthetic style associated with this term, here is a thematic breakdown of the "chubby babe" art style: 1. Aesthetic Characteristics