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English
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Published:
2026-05-13
Updated:
2026-06-05
Words:
14,095
Chapters:
25/?
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208
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323
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"something tells me I'm gonna love you forever" a Slimeknight irl college fic

Summary:

I am.. a sucker for college au fics and roommates, srry not srry

basically,

Avery thinks Derek is dead,

Derek isn't dead, but now shares a mind w KIY/Hastur. And is scared of them interacting, so he avoids him.
Unfortunately for him, they wind up being roommates,
And Avery realizes pretty damn quickly.

Gayness and shenanigans begin.

they are both in their 20's!!!!!!!!!

AND IT HAS SMUT, SMUT IS IN THIS FIC, TW/CW SMUT, EVERYSMUT CHAPTER WILL BE MARKED, READ AT yOUR OWN RISK!!!!

Notes:

bold is KIY/ Hastur btw,
italics in '-' r thoughts
:)
genderfluid she/he Avery and he/they Derek!
I'm gonna draw and post the human designs on my writing blog on Tumblr so i''ll make sure to put that next chapter!!
^-^

(See the end of the work for more notes.)

Chapter 1: its you

Chapter Text

After everything that had happened, Avery didn't dare touch his PC, he cried every time he tried.

 

He laid in his dorm room bed and rotted away, only getting up to go to his classes.

 

Everything had seemed to of lost its color, becoming duller in Avery’s eyes, 

 

Despite knowing him for only a very short while, Derek had quickly become his everything. He had no one else to be it.

 

She had wanted to get to know them better, wanted to know his favorite foods, his favorite music genre, his favorite flower. He wanted to know it all.

 

But now she’d never have the chance.

 

.

 

Derek sat in front of his PC, it helped to ease the migraines. 

 

Their mind raced, he had learned to ignore it, to block it out.

 

He truly should've gotten in contact with Avery, sometimes a thought would come by reminding them that he probably thought Derek was dead.

 

Then contact her,

 

He groaned at the voice in their head, rubbing his temple.

 

Hastur had been done with his shit for a while now, having to hear the thoughts and inner debates of if Derek should reach out or not, and it was tired of this.



“Well my apologies for being worried you might try and hurt him!”

 

Derek grumbled, Hastur scoffed internally,

 

We’ve already merged, there isn't much I can do.

 

Derek didn't reply to that, holding his head in their hands,



“Just.. shut up, please.”

 

.

 

Avery ran her fingers through her hair, doom scrolling on his phone.

 

A transfer student was going to be his new roommate, and he wasn't looking forward to it.

 

Most people were assholes,

 

‘Derek wasn’t’

 

He thought to himself gloomily, sighing softly at the thought before curling up in his bed and letting out a soft sad whine.

 

She eventually got up to get a snack and went back to rotting in bed, watching youtube.

 

.

 

Derek had packed his bags, pushing his glasses up as he stood up from putting his clothes in the suitcases.

 

He had been accepted into a college with much better opportunities, trying his best to forget everything, and Avery.

 

Though they were reluctant on that last bit, but it was what had to happen, right?

 

.

 

Avery heard the dorm room entrance open from her own pat of the room and let out a quiet groan.

 

‘Guess I should at least introduce myself.’

 

He slid out of bed and walked outside of his room, looking at the taller figure,

 

Who was very attractive, in Avery’s opinion.

 

When he saw Avery, they froze, wide eyed before looking down and closing his eyes.

 

It threw Avery off, but she held out his hand anyway,

 

“Hey, I'm assuming you're the transfer student and my roommate?”

 

They nodded and shook Avery’s chubby hand.

 

“Yea, yea that’s me.”

 

He released her hand and rubbed the back of his neck.

 

“Whats your name?”

 

They swallowed hard,

 

“Derek, my name is Derek..”

 

Avery froze, a whimper trapped in his throat just at the name.

 

“Cool, cool..”

 

She squeaked out, clearing his throat.

 

“Im, uh.. I'm Avery.”

 

Derek nodded, “Nice to.. Meet you, Avery.”

 

Avery stared at the ground, “Yea, you two..”

 

She turned on his heel and made his way into her dorm room, locking it behind him and collapsing onto the bed with a groan of despair.

 

.

 

For the next few days, things were tense for no apparent reason. But in reality, both had their own reasons behind the strange avoidant behavior.

 

.

 

Y'know, avoiding him is more suspicious than being normal.

 

Derek groaned at that.

 

“Yea yea.. I fucking know that, what do you want me to do?”

 

Before Hastur could reply, A knock on Derek’s slightly open door,

 

“Yea?”

 

Avery stood there, phone in hand,

 

“Were you.. Talking to yourself?”

 

Derek swallowed hard and shook his head.

 

“No no.. just thinking out loud is all.. Yknow?”

 

Avery nodded, “right.. Anyway, I'm ordering pizza, do you want any?”

 

Derek nodded, “yea, sure, thanks.”

 

“No problem, what kind do you like?”

 

Derek shrugged, “Cheese is fine.”

 

Avery nodded and left.

 

.

 

Avery laid in his bed,

 

‘Its late, I should order some food.’

 

Her mind wandered to his new roommate, 

 

‘It’d be rude to only order for myself.’

 

He stood up and stretched, cracking her back with a groan before walking over to Derek’s room, hearing mumbling, her face twisted in confusion,

 

Is he.. Talking to themself?’

 

He knocked on the slightly ajar door,

 

“Yea?”

 

Avery opened the door fully and looked at the attractive guy in front of her,

 

“Were you.. Talking to yourself?”

 

“No no.. just thinking out loud is all.. Yknow?”

He replied while shaking his head.

 

“right.. Anyway, I'm ordering pizza, do you want any?”

Aver mumbled,still a bit suspicious,

 

Derek nodded and gave a polite smile, “yea, sure, thanks.”

 

“No problem, what kind do you like?” Avery questioned while leaning on the door frame.

 

Derek shrugged, “Cheese is fine.”

 

Avery nodded and walked away, placing the order.

 

.

 

They ate together on the floor of Derek’s room, making small talk. Talking about their favorite things.

 

Derek hummed half heartedly at something that Avery had said,

 

“Isnt your favorite kind of chips the purple doritos?”

 

Avery eyed Derek, 

 

“What?”

 

Derek’s eyes widened and he began to stutter,

 

“Y-yknow I just uh.. Assumed.. I mean I uh..saw you eating them?.. Heard you mention it?..”

 

Avery squinted her eyes.

 

“I never mentioned or ate them in front of you, how do you know that..”

 

As the sentence ended, his eyes widened. Derek's dark skin burst out in a cold sweat.

 

“It's.. it's you.”