One I recall was a first person story from a somewhat unwilling feedee’s perspective, with a fair bit of mind break.
Initially, our narrator was totally onboard with this plan, enjoying eating what she wanted, when she wanted, and just generally lazing around. After she lost her job, her boyfriend or husband (can’t remember which) convinced her to become a stay at home wife and gainer.
She took to her new life with gusto, typically having a cartload of prepared food to finish over the course of the day, and receiving (generally fattening or gratifying) rewards for doing so. She winds up addicted to overeating, gaining weight, and getting rewarded for doing so. Even as her weight begins to get out of control and she begins to worry she’s getting too big, her s.o. is there to encourage her to keep going, keep eating, keep growing fatter. She’s not too big, not too helpless, not a burden at all.
Combined with her weakened willpower and now all-consuming appetite, this proves more than enough to keep her on the couch or in front of her computer, eating more then ever, growing fatter by the hour.
Of course, as our protagonist keeps growing, she’s beginning to really feel each additional pound, and her mobility and general capabilities are really beginning to suffer. She’s weighing herself with her s.o.'s help, and he assures her that she’s finally plateaued, but she has some significant doubts otherwise. However, she’s helpless to resist both her s.o.'s prodding, and her own bottomless greed. If there’s food, she HAS to eat it, and if there isn’t any food, she HAS to get more. She has, in effect, been reprogrammed into an eating, gaining machine.
Finally, she hits the point of no return. She puts in a herculean effort to rise under her own power, even destroying her throne in the process, but is unable to shift her blubbery bulk. Her s.o. manages to get her to her feet, and she slowly, painfully, glacially waddles to an enormous bed that’s been set up for her. As she carefully lowers herself to her new perch with considerable help from him, our protagonist feels a shudder run down her spine as she realizes that she’s now completely helpless and immobile.
And yet, despite her inner trembling and the shift in her s.o.'s playful teasing to a harsher, more dominant tone, she feels a familiar rumbling in her belly as he asks her what she thinks she should do.
She replies nervously, “O-order pizza?”
He smiles. “Good girl.”
Obviously, this isn’t everyone’s cup of tea, and the author did have some fetishes that I don’t share, but I was able to look past its flaws and find something enjoyable in this somewhat darker piece.
I’ve also concluded that I cannot do anything in short form.