(( So, I came across some neato drawings of Frisk the other day as a big chubby gal and I'm in love... So eff off if yer not a fan of chubby!Frisk, because this story contains one. x3 Otherwise, enjoy and please kudo or comment! ))

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Ever since Frisk had settled in with the Bonehead Brothers, the routine around them had changed up quite a bit. There were more mealtimes, since having a living human in the house meant someone actually had to eat regularly, every day, instead of just once in a great while when they felt like it. Papyrus and Sans also had to get used to remaining quiet at night and at Frisk's nap-times. She did her best to remain a pleasant guest at all times, but she got cranky when she didn't get enough rest, and living with two crazy skeletons required a certain amount of sleeping like the dead...

For the most part, despite a few small inconveniences here and there, both brothers were happy to have her as their guest, and didn't consider any of her funny little habits or idiosyncrasies to be anything but charming... Well, that was the case for Papyrus, who currently sat on the couch reading a newspaper, completely not noticing the thing Frisk was doing right now that was driving Sans completely fucking insane...

It wasn't entirely her fault. Frisk had a short, chubby body type, and had a lot of back problems that went with it. Once she was a skeleton too, all that pain would be a thing of the past, but that was a long way off, and until then... It was like this, at least every few days or so... She would lie on her back on the floor. She would stretch. Roll her hips and twist and writhe about on the carpet, bend her body into as many different yoga poses as she could, desperately seeking relief for her chronic back pain.

And Sans would just... Have to fucking sit there, and watch. Watch Frisk moan like a slut and twist her big gorgeous body into all the poses he wished he could bend her over into every goddamn hour of the day. And Papyrus just fucking SAT there, reading the funnies, god fucking damn it he was even WHISTLING, and Frisk was just...!

Frisk was just... Slowly getting up, rolling over onto her hands knees... Right in front of Papyrus, who didn't even NOTICE...

Hmm... This seemed like as good a time as any to kill two birds with one stone...

Calmly sauntering over to the larger lady, Sans stopped and stood directly behind her. His hips just right behind her hips. Which he suddenly and shamelessly grabbed on each side. His eyes glowed a gentle, inviting blue, hiding his truer intentions for the long run. "...Hey. Why don't you let me help out with that..."

He went right to it, not that there was any protest from her. Pulling her up to her feet, but keeping her bent over, Sans pushed her just a little forward, making her land with her face and hands in Papyrus' lap, who suddenly looked up from his newspaper in shock, "H-Huh-?"

Time to play catch up bro, Sans thought and smirked, hooking one hand underneath her soft and sexy rounded belly while the other pressed down gently on the small of her back, eliciting a short series of 'pop, pop's and then a loud satisfying 'CRACK~!' Nothing like getting something done for someone in five seconds that had just been taking them almost an hour...

And quite clearly, Frisk agreed - She dropped her head in between Papyrus's lap, grabbed a femur in each hand, and moaned, long and loud, right in front of his pelvis... "OH -GOD- YES, AHN, AH-AAAAAAAAH-!"

There was a less than short and more than tense silence after that. Frisk and Papyrus were both sporting wide eyes and blushes. Or a dusting of a golden-colored glow, in Papyrus' case. Sans had a smirk on his face...

"So, how do you feel now...?" He asked... But not to Frisk. He was looking up at Papyrus...

Very quickly, in a bit of a panic, Papyrus detangled himself from them, and rushed up the stairs to his room, exclaiming, 'IGOTTAGODOSOMETHINGNOWI'LLBEBACKLATERBYE-!"

That smirk was now a grin. Frisk sounded off with a few more 'pops' from her spine as she pulled herself back upright. "Aaah, I feel much better Sans, thank you..."

She suddenly looked back at him. She was smirking and grinning too. "Do let me know if there's some way I can repay you for that..."

He winked at her, his eyes filling with a mischievous blue mist. "Don't worry. I will..."

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(( To be continued, maybe? XD ))