Sans AU One-Shots

❀Dream❀ || saturday. (HG)

Pairing: Demon King! Dream Sans x Summoner! Female Reader
Prompt: It's the demons' heat week, and (Y/n) offered to help them out with their urges.
Type: smut
Length: 3.9k words
Background: This was in Her Guardian as part of a spicy week-long bonus thing where each of the guys got a day of the week with Y/n to claim her. The goal of the heat week is procreation (i.e. making babies) and after mating, the heat urges go away. The Stars are a lot more respectful and restrained, thus less likely to make their intentions obvious like the Bad Sanses and seek Y/n out, but the heat still affects them (just less obviously). | Takes place on Saturday - the last day of their heat (thus the most intense) and after everyone else's.
Notes: Lucky Y/n - the joys of being in a reverse harem, I suppose. Them being a demon only changes how tall they are (at/over 6'4"), their power (they're much stronger than humans), and how they see Y/n (among other things I explore in my full-length story that aren't relevant for this smut-shot). I tried to remove any information that pertains to the events of Her Guardian so you can read this as a stand-alone story and understand everything.
SOMETHING TO NOTE: Dream previously claimed he was not going to partake in relieving his urges with Y/n because she wasn't his mate, but since he's obviously in the lineup, the Dreamsicle is gonna have a change of heart after denying that he likes her for so long🤭

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Dream stood at the head of the kitchen table, eyes narrowed as he studied each of the Stars and Error. All of them were acting normally, not a hint of the heat that was still actively plaguing his every thought—like their urges had been satisfied. His socket twitched. It was the last day of their heat and thus the most excruciating, and despite his over 500 years of experience dealing with it, nothing else came remotely close to just how badly he was affected. So to see that he was the only one dealing with this was rather irksome.

"[Summoner,]" he mentally called out. Their mental link had been severed all week—though he hadn't the foggiest idea why, he strongly suspected it had something to do with his pushing her away at the start of the week—but with his increased desire to mate came an increased desire to bond with her. His soul craved her even more than his body yearned for hers, and something that deep was harder to ignore than just a purely sexual craving. But she wasn't his mate—something age old demons like him had as a life-long partner—and thus he must abstain from such impure acts.

"[I'm up in the bath,]" (Y/n) mentally replied, already foreseeing his question asking where she was. She was the only one not downstairs in the kitchen, after all.

"[Stars,]" he cursed, gritting his teeth as he quickly turned to leave the kitchen as the others continued talking. His mind was so impure that her simply mentioning being in the bath instantly sparked the mental image of her being naked and waiting for him, and he had to force it from his mind quickly in the hopes of her not catching wise. He'd had a good handle on his thoughts up until this point, but Saturday was always the worst when it came to their heat.

It was almost tiring being horny for a week straight so Dream couldn't exactly blame the others for relieving themselves with his summoner's help, but even if technically (Y/n) wasn't his, he couldn't shake the possessive feeling he got whenever he thought about the others touching her like that. He was normally sympathetic to their struggle—casting no judgment when it came to how they dealt with their heat—but as soon as his summoner was involved, he wanted to keep her as far away from them as he could.

"[What?]" (Y/n)'s confused reply came to him as he made it up the stairs and turned to walk towards her bedroom. "[My week has been long and hard, alright?]"

Dream actually growled as he strode faster, anger flashing in his normally calm eyelights. "[I do not wish to know what the others did to you.]"