after the events of portal 2 GLaDOS tool her time to repair the entire aperture science building has been restored to her liking and making tests for atlas and p-body, she started to feel..bored..and a lil lonely, and has started disliking just hanging from a ceiling all her immortal life, and so one day, she made herself a body based off popular choices from the web, after some trial and error she made herself a body, her software is placed inside and she wakes up in her new body, a deep silver feminine body with large breasts, slim curves, and thick thighs and an ass, which does surprise her a bit, and her head has her one eye on the front as a face, and wires to replicate hair in a ponytail, she manages to find old aperture clothes but it’s only a stretchy sports bra and legging shorts, which are..interesting but they are clothes, and for a test run she does some of the portal testing herself, and actually it’s a lot of fun, feeling limber and fast and doing flips and tricks which is something she’s only ever saw chell do, one day she looks on the web and comes across something she never heard of “fetishes” curiously she checks it out and ends up in a deep rabbit hole and finds fascination in “weight gain”…and wants to give it a try..since the metal she used for her body is flexible she can grow like a human woman would, she goes to her main hardware area and plugs a wire into her “mouth” which is just a usb port she inserts to the back of her head..and the magic begins, she watches her body slowly gets bigger and softer..and loves every moment of it

many months pass an chell the silent protagonist makes a return to aperture laboratories to see if GLaDOS is still online..and she walks in on the sight on the changed robot that made her life hell a long time ago..she is now large, fat, with a very huge belly, her thighs and ass are massive, and her breasts are huge as she “eats” more food

GLaDOS: mmm..such delicious malware..filling me to the brim..this is better than any testing chamber I ever made pats her belly which makes a clank noise…oh..it’s you..why did you return you mute lunatic..