Chapter 1

I didn't really notice her at all when I first started school, even though she was in my class and sat just two seats behind me. Her long blonde hair, light blueish eyes and perfect skin made her look like a model, well except for her braces, but I also found them endearing in a way.
What really caught my attention about her though is when she came to school wearing skin tight blue jeans which showed off her legs and ass. She had the sexiest shape of any woman I've ever seen, her thighs were perfectly round and plump and you could see how they had slightly out grown her pants as they squeezed their softness. But what stood above all was her fantastic ass, it was FAT, like FAT FAT, she was a very skinny girl so it was amazing how soft and plump her behind looked. It was as if all her weight had gone below her waist, she looked like a fantasy.
As time went on we got more used to each other and hung out together from time to time, but still never actually spoke much until one day she asked me for help with some homework. So I helped her but not without noticing that she kept looking over my shoulder while I wrote down everything she needed to know. Then later as she was finishing up I heard someone call her name and she turned around and said hi to this guy who seemed pretty popular in our school. He had dark hair, dark brown eyes, a cute smile and he was tall (for a high schooler). They talked for a few minutes before she left him standing there and walked back towards me.
"Hey, sorry I have to go," she told me, "I'll see you tomorrow."
And then she smiled, a warm and inviting smile, and walked away, leaving me confused by what just happened. She didn't have a boyfriend that I was aware of, but nonetheless I couldn't help but admire her beautiful behind as it jiggled bounced with her every step.
The next day she was wearing her same clothes, those tight fitting jeans and white crop top, but she had a very noticeable muffin top being squeezed by her waist band.
"Hi," she said cheerfully, "I'm glad you're here today."
We spent most of the period talking about her homework, but again I noticed that she kept looking over my shoulder, which drove me crazy because I kept trying to hide stuff and she'd catch glimpses of it.
Later that week we were back in class, and she was wearing her same outfit, but something was different, the jeans felt tighter than normal, like they were about to rip apart at the seams and her muffin top was even more exposed.
"Thank god this class is almost over," she sighed.
Then as she bent forward to pick up a pencil lying on the floor, her pants ripped open and her massive fat ass spilled out. The sound echoed in the classroom and everyone looked over to her. Her face flushed red and she gave me a quick glance since I had first row seats to the whole spectacle before she rushed out of the classroom. She must have been mortified, but I couldn't take my eyes off of her gigantic rear end.
That night I masturbated to thoughts of her huge ass and how it looked like she had gained at least 10kg. I tried to imagine myself lifting up her shirt to get a glimpse of her perky B cup breasts or even her pussy, but I couldn't picture anything sexual happening between us.
This continued for several months, and my fantasies got crazier and wilder where I would imagine myself grabbing her butt and feeding her food, making her gain even more weight.
One day during class she was leaning against the wall and she felt a pain in her side. I saw her lean forward and pull her shirt up to reveal a large bruise on her stomach.
"Oh my god, are you OK?" I asked.
She told me she was fine, but with a bruise that big it couldn't just have been nothing. I thought maybe she fell down or something.
Later that day I asked her if she wanted to hang out after school, so we could study for finals. But instead of studying she told me she had a surprise for me. I was excited, but my imagination ran away with me and I pictured her in a wedding dress with a giant belly and massive fat legs. No she obviously wouldn't want me since I like such weird things, I thought to myself.
"I want to show you something," she said, "Come meet me in the art room."
When we arrived she led me into a dark corner of the room and motioned for me to sit down on a stool. Then she leaned over and whispered in my ear, "It's okay if I touch you right?"
My heart raced with excitement, but my mind was screaming 'no don't do it'. My hands were sweaty and I felt like I was going to cum in my pants.
"Just make sure no one sees us," she said, "this is kind of embarrassing."
I nodded nervously and she placed her heavy, plump behind on my lap. I swear it was like having a heavy pillow sitting on me, I could feel every inch of her soft skin pressing onto mine and I could smell her perfume.
"You can put your arms around me if you want," she said softly.
I hesitantly wrapped my arms around her plump waist and I could feel some stretch marks on her sides, she leaned in closer, putting her head on my shoulder.
"Do you like it?" she asked.
"Uh yeah," I replied.
"It feels good doesn't it?" she asked.
"Yeah," I responded.
"I knew I saw you staring a little extra lately" she giggled.
I wasn't quite sure what she meant at first, but then I realized that she was referring to her recent weight gain.
"Yeah," I said, embarrassed, "I mean it looks great, but I just never expected you to be so into it like this."
She let out a big laugh and rubbed her thick thigh against mine.
"I'm sorry," she said, "I guess I shouldn't have done that. It's just that I haven't had the chance to really talk to you, and I wanted to tell you in a way I knew you would appreciate."
As she rubbed her thighs against me I began to wonder if she even realised what she had asked of me. I wondered if she was embarrassed by what she had done to herself, hence the blindfold. But I was also getting hard thinking about it.
"Was it what you expected?" she asked.
"Well..." I stammered, "I mean...it's just so much more than I thought."
"Really?" she asked with a smile forming on her lips.
"Yeah," I said, "you're so sexy."
Then she kissed me, her soft lips pressed against mine and I could taste her lipstick. We stayed like that for a few seconds before she broke away, leaving me panting for air.
"Let's go back to my place," she said, "I think it's time you got to see how big I've gotten."
We left school early and after a brief stop at the convenience store to pick up some snacks, we went to her house. I followed her upstairs and opened the door to her bedroom where a scale was waiting, along with a funnel and a large container of what I could only assume was a weight gain shake.
She took off her shirt, revealing a pair of boobs which had gotten so big that they pushed against her bra making them spill over along with an even larger muffin top that was now very strained against the waistband of her new jeans. As she unbuttoned her pants I couldn't help but admire the slight jiggle of her entire body as the immense pressure was finally released.
She now stood in front of me wearing nothing but some tight lace underwear, she grabbed my hand as she stepped backwards onto the scale. I could hear it click as she reached 90kg. She then poured the milkshake into the funnel, which she handed to me, and she put her hands through the opening of her panties. Ready to finger herself as I poured even more fattening fluid down into her growing body.
"Put it inside me," she demanded.
So I did as she instructed, watching the thick fluid slowly running down towards her lips. She let out an incredible moan as she got her first taste, her hand now moving furiously to pleasure herself. I grab a hold of her arm preventing her from cumming. She gives me an evil look.
"You aren't allowed to cum yet, we have a whole litre left." I whispered to her sensually.
She started to even more vigorously suck down the shake, but her eyes remained locked on mine. The sight of her enormous breasts on display, her full, round ass jiggling in the air and her fingers wanting to plunge deep inside of her own pussy was almost too much for me to handle. It was like looking at a goddess; someone who I never thought existed, who was so incredibly fucking hot, that all I could do was stare in amazement at her beauty.
Finally she finished drinking the milkshake and I helped her down from the scale. Then I laid her down on her bed, her belly was now stretched to its utmost capacity, her heaving breathing and pained moans themselves was almost enough to make me cum. But I was determined to see this through to the end.
I pulled her panties aside and she lifted her ass up off of the bed, unleashing the loudest burp I've ever experience. I was not strong enough to endure this torture no longer, the spectacle she had put on was enough for me to achieve the biggest climax I've ever had in my life.
"Did you just cum?" She asked while giggling.
"Yes," I answered embarassed.
"Good," she said, "now we can continue."
I smiled knowingly as I lowered my head, her face slowly disappearing behind her massive swollen gut. As my tongue reached her quivering lips I felt a shiver go through her entire body ending with a moan coming from the other side of her belly. I smiled as I got to work.
Her hands were now playing with her tits and rubbing her stuffed belly as I licked her wet pussy, my face buried in the folds of her fat pussy and thighs. I could hear her breath hasten, soon reaching a point where she couldn't contain herself any longer, her entire body shaking and trembling as she let out a loud cry.
"Fuck!" she cried, and then she came, shooting thick fluids all over the bed.
"That's it," I encouraged, "cum again for me."
She did as I ordered and shot another stream of thick liquid across the sheets, moaning loudly into my mouth as she did so.
Finally, she stopped cumming and I cleaned her up with a cloth, wiping off her sticky juices and swallowing her cum as I drank it down. She was exhausted, and passed out shortly after.
I lay awake in bed for hours, reliving the events of the past hour and wondering if this would become a regular thing. What if she decided to keep gaining weight? How far would she go? It was too much to handle, but I couldn't stop myself from thinking about it.