Sci-fi weight gain stories

Ashley finds her good-for-nothing sister after a day of work having blown their shared money on a promo drink. It'd only be fitting for her to blow up in turn. One-shot Blueberry TF to burn off some daydreams I've been having lately lol.   More ▼

You tune into watch a chubby cute streamer, only to find a pleasant surprise. Contains: genderless self-insert via 2nd person POV, massive and rapid weight gain, immobile blob, references to self-pleasure. Art by CJ-X4, shared with permission.   More ▼

*UPDATE: NEW CHAPTERS FOR 7/9/24 A spin-off of my Meeting Mary story. Welcome to Fatworld focuses on Mary, who has been shipped to Fatworld. A place where overweight people are taken to to get beyond immobility. Note: This story includes humiliatio   More ▼

Andrew's body changes over the course of a week   More ▼

When you're a superhero whose whole power is fattening bad guys up, you tend to make some big enemies.   More ▼

Time travel and ripple effects Mutual gaining   More ▼

A woman and her favorite letter. (stuffing, tube feeding, implied force feeding, SSBBW AND SSBHM, sexual descriptions etc. More sensual and descriptive then anything. yes, still in the colton corp world, but a different way of writing then I normally   More ▼

Opal thinks she's in charge of the affair but Dr. Wren has his own agenda while other women... A twisted novella of science gone awry in this revision/expansion of Opal's Obesity. This is a thank-you for all the views and now the story is complete.   More ▼

Mutual weight gain, sex swap!   More ▼

A woman wanting to rule the world gets the opportunity when she ingests an extraterrestrial jelly substance and starts turning into a hungry blob monster (Ripped the old version of the story up and started over. Feedback appreciated)   More ▼