Allison, a the shy and gentle Rex girl was in her apartment, doing what she liked to do most: lying on her bed and enjoying a good fantasy novel. It had everything she liked. Dragons, knights in shining armor that... Just so happened to be some rather kickass ladies... And a ton of very detailed descriptions of food. The bed of course was less pleased with having to bear the weight of the voluptuous rex and creaking noises where heard whenever she shifted her rather large form.
She sighed a little as she looked at the time on her phone. The daily reminder would go off soon. Just like every day, Allison was dreading it. But her roommate challenged her into it and now she couldn't just back out. The big curvy rex grumbled a little. How did she ever get talked into this? A lazy finger poked the phone on the table in annoyance. Probably because it was good for her and as much as she hated to admit it, she would never get to it on her own.
Just as expected, her phone sprang to life on the table, buzzing at her and making sounds. The face of her roommate, Jessica, appeared on the display and the words "Get moving! Time waits for no one!" - Allison sighed and quickly pressed the button labeled "Dismiss". Oh well, a deal is a deal and this Rex was going to honor it!
Allison sat up on the bed and stretched. It had become routine by now, but she still had to push herself every evening to go out on her run. Due to her curvy body, she rather early decided to choose a path that was a little less populated. Mostly because her form in motion tended to be very... Distracting for onlookers everywhere. While Jessica encouraged her to "go all out" and "show off what she's got", Allison quietly selected a different path to jog on every night. Of course it was considerably less safe and lead past the chemical lab close to the city outskirts but... For a little peace and quiet, she was willing to take that little detour.
What our green-skinned protagonist did not know was that in this very night, something sinister was about to happen in the chemical plant. Something that would make this day one that she, and probably the entire city, would not soon forget. As her heavy footsteps shook the ground a little, her chest heaved despite the proper bra and her heavy breath was visible in the dimly lit night, she noticed something rather strange. An unmarked, white van was outside the chemical plant, and for a moment or so... She thought she saw the shine of a flashlight in the distance.
Curiously, Allison started to approach. After all, maybe it was just some kind of delivery. She never really had to be afraid of anyone. Given her stature, most people where afraid of her. And probably for good reason, too. Admittedly, she always was curious what was going on in that lab. She wanted to be a chemical engineer some day, a "nerd job" as her roommate described it colorfully.
At her rather impressive height, the truck's roof was actually shorter than she was, so she just elected to peek over the roof as she approached. On the other side, two people - you could only really call them 'crooks' - where running down the way towards the van. Allison let out a surprised 'eek!' and quickly crouched down behind the van, quickly reaching for her phone. She had to call... The police! Or maybe Jessica! Or help in general or...
She couldn't really finish her thoughts. One of the crooks, who was on his way to the van, ran around it to get into the passenger side, only to slam right into the crouching massive rex. It wasn't exactly unpleasant for him - after all, she was almost the definition of soft - but the robber was caught off guard. Allison could feel a small vial of liquid crash against her chest and eeked again, crawling backwards and away from the two.
"Crap! I lost it! Where did she come from?" The unlucky-lucky crook shouted. His accomplices replied right away. "Forget it! We have to get out of here!" Only a minute at max later, Allison saw the van leave, still sitting on the floor, feeling her heart pound in her somewhat damp chest. She looked down. What on earth happened to her?