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“Feederism: Eating, Weight Gain and Sexual Pleasure” by Kathy Charles. I’m only about 20 pages in but figured I’d share, I have never seen anything like this before. The link is for the pdf and it’s safe I tried it myself with zero issues. Curious if anyone has thoughts about it.

I've skimmed it. It's definitely the best academic work on this fetish, although that's a very low bar to clear. They actually interviewed people with the kink to try and understand what makes us tick, which is way more empirical work than just about any other academic studying feedism has done.