Before the story begins, lets get to know Sasha
Sasha Ripley was a young 16 year old girl who had just dropped out of high school due to her YouTube career turning out to be profitable. She had a small, petite body with her c cup breasts being her most notable feature. Her kawaii face made her seem more relatable to her viewers. At 5 feet 10 inches, she never stood out as an object of many desires, except by her fans on YouTube. She held a pretty introverted social life, but was outgoing and energetic on camera. She believed she was always going to be like this, and nobody was ever going to change that. That was, until the bimbocalypse broke out.
Her first encounter with one of the bimbos was one she wouldn't forget, even with her newly shrunken brain. She had just finished recording a new episode of her Minecraft lets play when she turned off the camera and saw a busty blonde leaning against the wall in a seductive manner. She had huge k cup breasts, a massive booty, and plump pink lips. Her cascading blonde hair was tied up into a long ponytail and she as eyeing Sasha like a starved dog stared at meat. Her sexy body was nakedly exposed in a set of small underwear. Sasha was stunned at the sight of the plus size bimbo who was now racing towards her. The bimbo pinned Sasha against the wall and started to pull off her clothes. Sasha tried to push the bimbo off of her, but she was a weak gamer and the bimbo's breasts were probably heavier than her.
The bimbo tore off Sasha's t shirt and unhooked her bra, then proceeded to lick her nipples. The young gamer had never felt pleasure as intense as this, and probably wouldn't ever again. The bimbo then proceeds to move up to her neck, slowly kissing her way up, while trying to remove her jean shorts to het to the main prize. At this point, Sasha was already starting to orgasm just from the nipple licking and the feeling of the bimbo's massive melons squeezing up against her. The bimbo made it up to her mouth, and started giving Sasha a deep kiss while pulling down her panties. Sasha, still uncertain why this girl was now actively pleasing her, had a somewhat primal urge to please back. She joined in on the kiss, wrapping her arms around the bimbo's back. The bimbo finally got to her pussy and started to finger her. A wave of intense pleasure rushed over Sasha as the bimbo fingered her virgin pussy. A moan escaped from her mouth, muffled by the fact that they were still in a deep kiss with each other.
Sasha's mind nd body were already racked with the new changes. Her intellect was steadily dropping, she was now about half the IQ she was when she began. her cute sweet face matured into a sexy and seductive one. Her lips plumped and pursed while still searching the bimbo's mouth. Her relatively small breasts were ballooning in size, going from her normal C cups to huge H Cups, pushing her away from the bimbo's mouth, which she was starting to crave more and more. Her mind was filled with thoughts of lust and kinks. She was becoming skillful in every sex tactic known to man. The bimbo had finished fingering her now matured pussy, which was leaking Sasha's juices. Sasha reached down into the bimbo's panties and did the same to her, causing the bimbo to release another stifled moan. Sasha's pudgy belly that she had developed over a year or two of gaming and fast food was almost gone in seconds, leaving a flat, toned stomach and thin waist in its place. Her nonexistent butt swelled with fat, making it round and plump. The bimbo reached around and started groping, squeezing, and smacking the girl's plus sized posterior. Her short, brown, bone straight hair grew put long and full, with streaks of red mixed in. Her chicken legs thickened and became long and thick. Her nails were painted a permanent navy blue. The bimbo started to pull away, but Sasha was not done. She started furiously pounding her friend's mature pussy, and the bimbo responded by returning to Sasha's and giving her another round. They both retuned back to a full, deep kiss as they both started to orgasm at the same time.
The pair of them seemed to grow together as one in their simultaneous climax. they both added 2 cup sizes to their breasts, 10 inches to their butts, 15 inches to their hair, and both were driven crazy with a new rush of lust hormones. The pair finally broke apart as they both stood their, reeling in pleasure. In the end, Sasha had gone from a short, petite gamer to a buxom, thick, sexy bimbo with long black hair with red highlights, huge 30K breasts, a massive ass, a thin waist and flat belly, wide hips, thick thighs, and a new, sex-crazed personality, ready for a couple of dicks to cram inside her.
Sasha, now being part of the bimbocalypse, escaped her house to find some more people to infect. However, she wasn't thinking on impulse or free will. She was driven by instinct. She wanted to stop and go home, but she was still moving along, attempting to find another person, hopefully a guy. She tried to stop herself, but she was not acting for herself. She was 100% controlled by instinct. Her own thoughts didn't matter. As long as she didn't stop thinking, she could basically go into autopilot, having her body go infect some people while she just stuck to her own thoughts. It was a rather creepy feeling, not being able to stop your own body, but she was going to have to get used to it, or else she would have a long life ahead of her.
While she was roaming her city, looking for anyone she could infect, she stumbled across...