Sans AU One-Shots

❀Error❀ || thursday. (HG)

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.
Type: smut
Length: 3.3k 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 Thursday - late in the week (thus the heat is worse) and after Swaps, Slash's, and Ink'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.

~-~-~-~

The house was silent as death itself, everyone either asleep or quietly keeping to themselves—which meant Error could finally hear himself think. Why he had to be summoned by the witch (Y/n) was beyond him, but he had a feeling it was some sort of joke from fate itself, just like fate thought it would be funny to see him suffer by giving him Thursday again. Having to deal with Ink was suffering enough, but the ever-mounting, increasingly harder to ignore heat on top of dealing with all the Star Sanses was enough to set his veins on fire. So to de-stress, he crocheted up a red sweater that matched his own, but since he didn't need it, he'd given it to (Y/n). Red and black went well together, and she actually looked rather cute wearing it—not that he'd ever admit that.

But since the house was quiet for once, he was in the kitchen pouring over his battle plans. He didn't need sleep, so he planned to take full advantage of the time to strategize as best he could. Regardless of why he was stuck with this (Y/n) and the annoying Stars, they needed his expertise—and a break from the demon world felt like a vacation, even if he was stuck in sorry company.

Error's focus was so absolute that he didn't even notice (Y/n) softly padding across the kitchen floor towards him. When he saw movement out of the corner of his socket, his head snapped up. (Y/n) was wearing the sweater he'd made her, black lacy panties, and red fuzzy socks that reached halfway up her thighs, and she was rubbing at her eyes as she waved to him. The sweater was just long enough to cover the top of her underwear, but the lacy fabric did little to hide her ass, and the socks were just tight enough around her thighs to make the skin pop out slightly.

"Hey Error, what are you doing?" she asked, making his eyelights snap to her eyes. It was a struggle to keep his gaze up, but he just about managed.

"I'm minding my business, obviously," he grumbled, rolling his eyelights before forcing his eyelights to return to his plans scattered across the table detailing their next steps. He needed to focus for all of the demons' sakes, but he couldn't stop picturing the girl standing next to him, and the heat craze on top of her outfit choice made his boney fingers dig into the kitchen table.

"I suppose you're alone for once so that must be nice," (Y/n) said, her tone polite as she smiled sweetly at him. She stepped up beside him so her thighs pressed against the table, accidentally brushing her leg against his. He jolted, error code flashing in his sockets, but kept his hips firmly against the table. He was all too aware of the lack of space between them, and despite his fear of touch, his mind was clouded with desire. She was a human—weak compared to a demon—so she couldn't hurt him anyways. Or maybe he was just too horny to care.