Sans AU One-Shots

❀Error❀ || thursday. (HS)

Pairing: Demon! Error Sans x Summoner! Female Reader
Prompt: It's the demons' heat week, and (Y/n) offered to help them out with their urges.
Length: 3.7k words
Background: This was in His Summoner (hence the HS in the title) 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. This is the only time Nightmare will let them have Y/n, so they better make it count. | Takes place Thursday - after Killer, Horror, and Dust's.
Notes: Poor Y/n (or lucky, depending on who you ask). 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). 

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Error is—in Layman's terms—one angry bitchless motherfucker. You add a demon's heat on top of his normal behavior and you get a being ready to explode—or in his case, on the verge of glitching out of existence. The others knew better than to talk to him at all during their heat week, especially towards the end. So of course with his luck, he got (Y/n) on Thursday. Crocheting up a storm only did so much to calm himself down, but it worked. Barely.

Needless to say, by the time his day rolled around, the anger had all but replaced his haphephobia and he was not about to wait another second. All he needed was (Y/n).

Marching outside of the lake home, Error found her sunbathing in the hammock. She was wearing an adorable little sundress with a big floppy hat and sunglasses, and she had a book in her hands. At his approach, she looked up with a smile.

"Hey Error!" Her smile was as bright as the sun, and despite his heat crazed mind, he almost stopped walking just to stare at her. She was beautiful. But then he snapped out of it and glared at her. She'd look even better bound in his strings moaning his name. She slid the sunglasses down her nose to look at him with confusion. "What's wrong?" The book snapped shut as he awkwardly looked down. He'd spent all his time angrily crocheting and imagining what he'd do with her when Thursday came, but he'd never once thought about how he'd get her to agree. He knew demons typically had a courting process where they tried to woo the female, but uh...he'd never needed to do it before.

"Error? You're starting to scare me," (Y/n) said, laughing awkwardly as she played with the book in her hands. No no no, this was bad, he didn't want to scare her away! He unknowingly glared angrily at her as he felt his control of the situation slipping away, and his glitching got noticeably worse. A delicate thing like mating had never been his forte, but you'd think with all his strategic ability he'd be able to woo (Y/n) easily. You'd be wrong.

"How's your week been?" he asked, the words coming out forced and uncomfortable. This whole situation was awkward, and even for a dense girl like her, she picked up on it.

"Hard," she admitted, then her eyes went wide. "I mean- um, it's been long- I mean- fuck- wait, uh, shit balls-" Her cheeks burned with embarrassment as he laughed softly. At least he wasn't the only awkward one. She breathed in and out slowly as her eyes darted away from him. "But you didn't visit to hear about how the others, um, did their thing. So what's up?"

"I was wondering if you'd be interested in going somewhere discreet with me?" Error nervously fiddled with his strings, the blue blush on his skull matching the strings coming out of his sockets—though the blush was still plenty visible. All his anger amounted to nothing when he had not a single suave bone in his body, but for the sake of finally sating his heat and cashing in his one opportunity with (Y/n), he had to make this work somehow.

"Where?" She tilted her head. He wasn't about to risk any of the others walking in on him—knowing them, it wouldn't be accidental—so he'd scoped out a private location in preparation for today.