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Rated: E · Interactive · Erotica · #2261890
Brooke & Mikayla are sisters in their 20's—this is how one made the other very, very fat
This choice: Brooke slowly begins to chub up as Mikayla abuses this new shortcut of hers.  •  Go Back...
Chapter #6

Inevitable Side Effects

    by: Mrphoenix
Mikayla could hardly believe she’d cracked the code so thoroughly. Could it really be as simple as getting Brooke in as shitty a mood as possible?

Apparently so! After a day of pulling out all the stops, Mikayla had successfully dodged yet another round of chores. In fact, she’d done such a good job at ruining her day that it rolled over into the next; Brooke still felt bad enough the next day (thanks in no small part to the mountain of Oscar’s she’d inhaled) that Mikayla’d managed to avoid doing anything yet again. Not only that, but by the time she’d bounced back from her multi-day stupor, Brooke felt good enough to just take on the chores herself, so Mikayla hardly had to do anything.

Aside from the cost of two day’s worth of Oscar’s (not insignificant, but definitely worth the expense), Mikayla had enjoyed yet another night out on the town, and hadn’t had to make it up with washing the windows or sweeping up the kitchen the next day. Plus, getting home late had just served to further mess with Brooke’s quality of sleep.

Suffice it to say, Mikayla greatly enjoyed her few days off from at-home responsibility.

She really enjoyed it.

Like, seriously, it was absolute heaven

…so of course she wanted to do it again! Wouldn’t you?

But surely this was a one-time thing, right? Brooke couldn’t be that susceptible to such an obvious form of deception?

Well, apparently, she was.

“Hiya, sis!~ How was your-“

“Cram it. God damn, I’m really starting to hate this job…” Brooke had barely walked through the front door before she’d already unbuttoned her buttoned work shirt and and slacks and had tossed them haphazardly across the room, where they landed in a heap in the corner. “…and I’m just so…ugh, so frickin’ famished…”

Another day, another evening that would be spent on the couch. This had been going on for the better part of a month, multiple times a week, with Mikayla always at the ready with that oh-so-tempting offer. One that Brooke would inevitably accept, each time faster than the next, until now it was accepted without so much as a second thought. More than that, Brooke was beginning to anticipate these little transactions.

“Well, if you’re really that hungry…” Mikayla trailed off, knowing full well she hardly had to get halfway through her sentence before her big sis would take the incredibly obvious bait hook, line and sinker. She already had her phone out, putting in the order and just waiting for Brooke’s affirmation to send it through.

“Yeah, yeah…Oscar’s, the usual…” Brooke grabbed the remote and began pulling on her lazy clothes, which she’d left on the couch that morning when she’d changed into her more grown-up getup. “…and gimme a liter of Coke.”

“You got it!” Mikayla happily added the overpriced drink to the order and hit “Complete Order”. “You gonna be here a while? I was gonna-“

“Don’t even think about trying to get me to move, Mikayla. With the morning I had…”

Mikayla’s machinations had evolved over time, and trial and error had resulted in her having to do much less than she’d had to that first go around. Figuring out exactly how much she’d had to do to get the reaction she wanted had been a game changer, to the point where she only had to do a few tiny little things here and there to essentially guarantee she’d come home in a heap.

“…and you wouldn’t believe what happened at work. Not that you need to know…"

Of course, it never hurt to make a phone call every now and then to mess with her at work…just in case…

“…and of course I came that close to splitting my pants in the middle of that meeting with HR…”

…well, that wasn’t part of the plan.

Brooke had always been kinda chubby, ever since either of them could remember. Her constant weight problem had been the primary source of her insecurities, one which Mikayla was more than happy to exploit, but realistically, she was never big. Chubby, sure, certainly “thicc” if you were feeling charitable, but hardly the fat blob her blonde sister made her out to be.

Slowly but surely, though, she was starting to lean ever closer towards being undeniably fat, with a big, BIG capital F.

Mikayla couldn’t help but glance down at the bulging potbelly that was drooping down over Brooke’s panties, shaking about as she fought against her old high school tee. As she pulled on the old shirt, her excess flesh bulged out slightly from under the hem, hinting that it was just past time for an upgrade in size.

As she turned her back on Mikayla, bending over to pull on her leggings, the extra fifteen or so pounds she’d discovered over the last month or so were even more noticeable. That ass, the bane of Brooke’s existence, had further bloated out, two wobbling spheres that dragged her down from behind. It was obvious even without seeing her in them why they were pushing the seams on her work pants to the absolute limit.

It wasn’t like it was hard to pinpoint why Brooke had suddenly started piling on the pounds. Multiple feasts of cheese, grease and chicken a week were hardly beneficial for her figure, and the multiple fast-food runs she’d had to make in the morning to make up for whatever groceries had “mysteriously” disappeared overnight had hardly helped either.

Brooke finished stuffing herself into her one-loose Fat Girl outfit and collapsed down onto the couch, snagging the remote and turning on the tv. “Just…ugh, leave me alone, ‘kay? I don’t wanna do nuthin.”

“Alright! Sounds good!” Mikayla began texting one of her friends, her plans already forming before her eyes. “If you need me, I’ll be at-“

Brooke waved her hand lazily at Mikayla, shushing her. “Zip it. I don’t care, I don’t care, I don’t care.”

And with that, Mikayla bounded away, while Brooke took on the arduous task of choosing between Netflix Originals to binge.
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