You couldn't resist, and slowly turned so she could mount you on the bed. She was heavy, almost unbearably so as she sat in you lap. The other girls just smiled and went about their business, realizing you were more interested in the whale of the group. You didn't know how many times you orgasmed, but you just wanted to enjoy this moment. If you were going to be stuck in a nightmare, at least you could fulfill one of your wildest dreams and Tammy seemed all too willing to indulge you.
A while later, you lay in bed, snuggling with Tammy, her warm flesh almost engulfing you as you both breathed heavily. Sometime during your session, the lights had turned down to a faint glow, and most of the other girls had gone to sleep.
Tammy breathed a happy sigh, "So tell me your name."
"Jack"
Tammy smiled, barely visible in the dim light, "So from now on you're Jackie."
"I'm not a girl yet."
"There's no reversing it once they inject you, so even though you don't look like it, you're as good as a girl. Besides, even if you could get out, no one would recognize you in a few days."
You massaged her massive belly, letting your hands sink into her flesh, "So if you're so eager to be immobile, why don't you just break some more rules and have them make you fatter."
She chuckled, "How do you think I've gotten this big so quickly. I'm gaining over a pound a day. Most of these other girls have been here their whole lives, and they still aren't as big as me. Some of them don't want to be fat and immobile, but there's nothing they can do so they just enjoy it. The rest weren't quite as dedicated to growing as I am. I was considering not letting you knock me up because its against the rules not to get pregnant."
"You mean, they fatten you up if you don't get pregnant?" you said, feeling her large body press closer to you.
"Yep. They think you're trying to avoid being slowed down, so they force you to fatten up. At least getting pregnant, you'll regain some of your mobility in 9 months."
"Why doesn't anyone just work harder to keep the weight off and lose weight?"
Tammy chuckled, "They have their ways of making sure you keep getting fatter. One of the shots they give you makes sure of that. And they have one that will make it impossible to resist food. Though, you really won't start getting fatter until your second week."
"So I have a week until I start getting fat?"
"Yep, but don't get too excited. You'll find yourself changing a lot in the first week. It may take a month for you to fully turn into a girl, but after the first week or so, you'll pretty much look like you're a girl. Then you'll gain a bunch of weight, and you'll start thinking like a girl. Then finally, you will be a nice plump girl. But enough for tonight, lets get some sleep."
Tammy rolled onto her side, as you spooned her in your bunk, your arm not even able to make it all the way around her middle. Eventually, you drifted into a dream filled sleep where countless boys filled your hole with their cum, as you got fatter and fatter.
You let out a tired grunt as someone shook you awake, "Rise and shine sleepy head. It's time for breakfast."
The other girls were lining up by the door, most of them looking ravenous for food as Tammy helped you to your feet. That's when you noticed that one of the walls was a giant mirror, reflecting the whole room. Thoughts filled your head as you wondered what it would be like to watch yourself turning into the object of your own fantasies. Quietly, you let Tammy drag you into line, making sure you were pressed right against her soft body.
"Now don't try anything against the guards." Tammy whispered.
"And why not?"
"They don't like doing it because it's expensive for them, but they can make you regret it."
With a soft hiss, the door slid open revealing three guards who watched the girls intently as they began filing out of the room. Slowly you made your way forward until you were even with the guards. They had on body armor, and their masks concealed their faces, but you were pretty sure they were all men as they towered over the girls in the line. It must be pretty easy for them to keep a bunch of short, fat girls under control, you thought before frowning. Pretty soon you'd be one of those girls.
As you were passing, you noticed that none of the guards were paying attention to you, instead focusing on the line stretching into the hallway. If you were fast, you might be able to make a run for it before they realized what was happening. Still, who knew what they'd do to you if you got caught?