Continuing her giggling and posing in the mirror, she started quickly gaining weight, most of it in her belly and butt. Jen didn't realize any of these changes though, and was still making cute faces and poses, even with her easily 300+ lbs body.
"I love how cuUURRP. Oh! Excuse me..." She blushed, making a cute and embarrassed face, talking only to her reflection.
Her stylish schoolgirl clothes became a dirty grey crop top and some gross black panties, she still tried to be fashionable, but failed at it. She was now at her computer sitting down instead of looking in a mirror, her 600 pound body couldn't stand up easily. She grew tons and tons of crotch and armpit hair, she loved the feel of it, but her leg hair was the showstopper, it was so thick you could barely see her legs, and it smelled horrible from months of sweat and pee without a shower.
"Well, time to get online, can't keeBWOORP the people waiting.." Since she was a 'perfect' anime girl, the world's perspective of anime changed, and the ideal anime girl was a dirty slob. She was very popular online, and played games with her audience very frequently.
"Hey everyone! *FRRRT*" She farted to her massive audience, they loved her, and she loved performing for them. But her changes weren't finished yet, and thousands of people would witness them now.