I've got a couple of requests on my list of things that were lost.
Everything by whooptydoop on deviantart, but especially his "Indentured" series, which was a story about an irish servant girl in America who was being fattened up by the eldest daughter of the plantation owners. The eldest daughter herself wanted to get fat but couldn't because of her obligations and upcoming marriage, so she was living vicariously by fatting up the servant girl, and getting the other servants in on it to help her.
Anything by Sharangas on deviantart, but especially his "Fatlantis" series, a group of semi-connected stories about a fictional empire where the rulers have to overeat and become fat to show off the power and wealth of the nation. He's a BHM writer, and the central story of his 'Fatlantis' fictional setting was a story about the crown prince being forcibly stuffed far beyond his limits by servants, guests, and his own incurable gluttony.
A very old female weight gain story called "A Stately Pleasure Dome" (or something approximately like that). It featured a woman who had been kidnapped by a secret society and was being transported to different locations all across the world to be fattened up to enormous proportions. She wakes up in a beautiful room and is informed by a mustached man with a shiny nickel badge on his chest that she is in Turkey, the "land of sodomy and sherbet," and that she is to be force fed yet again. Being greedy, she isn't opposed to the idea, but she resists because she's still full from the feast last night. He informs her that she has no choice, and proceeds to feed her anyway. When she tries to resist, he threatens to force feed her by forcing her mouth open with a metal pear and pumping pancake batter into her stomach. She thinks he's bluffing, until he starts to, at which point she relents. Her stomach is so full she complains about the skin tearing, so he pulls a dish of melted butter off the food cart and paints it onto her belly. He then injects her stomach with a syringe that contains a drug that he explains is designed to help burn victims regrow skin, but in her case will help thicken and grow the tissue of her stomach as they stuff her. He then proceeds to force feed her beyond the human limits, with the drug helping her stomach to grow to accommodate it. She becomes so full she has an orgasmic vision of herself as a fertility goddess before passing out. The final shot of the scene is the waiter wheeling away the cart and leaving her to sleep, as he ponders the sizes to which their society will be able to grow her. Their goal is to transform her into the biblical leviathan.
An equally old female feeder/male feedee story, name unknown. A husband who has been staying home while his wife works has been putting on weight, but trying to hide it. He's a feedee, but is ashamed of it, so he's sneaking the pizza boxes and takeout trash away to try and keep his wife from noticing how much he's eating. It hasn't worked, and she has noticed, but she also has a secret fantasy of feeding and fattening him, so she hatches a plot. The day she gets a promotion, she decides to spring a "surprise" homemade dinner on him to celebrate, knowing that he will have already stuffed himself with pizza and fast food that day. She fixes a massive lasagna, garlic bread, pasta, a huge mixed salad, and several other dishes, for a full course Italian dinner for a family. She then teasingly goads him into eating more and more of it, knowing that he's already stuffed to the limit from his secret food earlier in the day. She employs several tactics each time he starts to flag, like betting him on having to repaint the living room if he can't finish his plate. He reaches his limit with the lasagna, but she packs a bowl of weed for him and makes him smoke it to get hungry again. He eventually manages to eat nearly all of it, until he physically can't raise his arms anymore from being too exhausted from eating, at which point she offers to feed the rest to him. He thinks she's joking, but is panicking internally, because he's worried she's going to find him out. But she picks up a meatball and pops it into his mouth, causing him to get an erection, and then slowly feeds him the rest of the family dinner while massaging his stomach. She smokes what's left of the weed and drinks what's left of the wine before dropping all pretense and telling him that she likes him fat and she's going to fuck him whether he wants it or not. He's packed so much food into himself he can't even get out of his chair, so she helps pull him up and waddles him to the bedroom, where she reveals the last surprise: an entire cheesecake. The last few paragraphs of the story is her mounting him, putting the platter on his giant stomach, and feeding him the entire cheesecake, one forkful at a time, while she rides him. They fall asleep together, and that's the end.
A second old female feeder/male feedee story, also name unknown, featuring a single male feedee and a harem of feeders who also undergo bimbo expansion. I believe this was previously posted on deviantart, but I am not certain. It featured a young man who adopted/selected to migrate to an obscure European country where nearly the entire population are women. He has been selected to become their new king. He doesn't have to give any speeches, and is only briefly introduced to the country's residents before being put away in the castle. He finds this strange, but accepts it. The castle has all kinds of modern entertainment in it, like a movie theater and a swimming pool, but the most impressive thing is the feasting hall, which is also where the throne is situated. The first night he eats there, the all-female servant staff serve him a dish of royal jelly. The taste is indescribable, but the moment he finishes it, he forgets all about it, and finishes his meal. From that moment on, he cares less and less about the gardens, the video games, and everything else the castle has, and increasingly entertains himself by feasting. He begins undergoing massive weight gain, but also experiences significant penis and testicle expansion, as well as muscle growth that allows him to remain mobile. This is, of course, all according to plan. The female staff eventually coax him into using them to 'relieve' himself, which they use as an opportunity to milk him of his semen. This is the real reason for everything, because the king's semen can reverse the superficial effects of aging and also cause ass and breast expansion in women who consume it. And the potency of his semen is directly proportional to his size. The entire economy of this country is based on exporting diluted extracts of the king's seed as a wonder drug for women. The women OF the country, however, get to enjoy the undiluted, raw substance. The boy continues to gain weight, and his balls and penis continue to grow at a pace that almost keeps up with his stomach. He accepts his lot in life, and becomes the most productive king their nation has ever had.
Whooptydoop and Sharangas are dead accounts. Whoop bounced because he "moved on," as so many writers do, and Sharangas just disappeared one day. I know exactly what their stuff is, but can't access it because it's literally gone. Hopefully somebody somewhere saved some of it.
A Stately Pleasure Dome (if my memory is correct and that is indeed what it is called) seems to have vanished off the internet. I assume it was deleted or removed because even exact name and phrase searches can't find it on Google. To be fair, though, Google sucks.
The two female feeder stories may still exist, but if they do, I can't find them. There was a period of time several years back where tumblr flooded the internet with thousands of crappy spam and erotic short stories and poems, and that deluge buried most of the old stuff. Then tumblr cracked down on NSFW content, which destroyed most of it, but the damage had already been done, and I can't find most fics that predate the tumblr deluge. Searches for the older female feeder male feedee stories, including the specific ones I described, turn up absolutely nothing, or a bunch of trash. The matter is made worse because the term "FFA" hadn't really been invented yet, so you have to search for stuff like "female feeder" or "wife feeds husband," which usually turns up very new male feeder female feedee content. There are other "pre-FFA FFA stories" that I'm trying to find that I think are lost forever, but the two I want the most are the ones I described above.
Since I believe in take a penny leave a penny, here's some stuff I like, some of which is very old.
>http://textfiles.com/sex/EROTICA/M/maria2.txt>https://www.angelfire.com/fl/strangerthanfact/stuffing.html>https://www.deviantart.com/borghen/art/Bianca-105853879>https://www.deviantart.com/excellency-shinigami/art/The-Right-of-Gluttony-812881579>https://www.deviantart.com/honypotant70/art/White-Elephant-716315188>https://www.deviantart.com/kamaugraade/art/COM-Feast-for-the-Queen-643178310