A/N okay so I want to clear something up really quickly! I am making naj error a both a nerd and a jock. He is still the PE teacher but his personality is more like a nerd. If you know what I mean- and this will be pretty bad! Also! Nightmare is the history teacher! But they are all the same age?- Forget logic-

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Nightmare sighed an irritated sigh as he walked through the hallway...he felt jealousy arise in him as he saw his crush killer, talking to the PE teacher.

He knew that error isn't the brightest person in the world..he gets easily aggravated like himself. He is actually pretty good friends with him. But seeing him talk to killer made him pretty angry...

Nightmare growled underneath his breath...he decided hes had enough...nightmare walks over to error and killer, trying not to seem as if he was ever angry.

"What are you two talking about..?" Nightmare asked the two.

Error looked over at nightmare and smiled.

"We're discussing killers PE grade! Hes doing fantastic!" Error says while smiling proudly at killer. Who was now blushing due to the fact his history teacher is here. Who just so happened to be his crush.

Nightmare sighed and smiled slightly at killer. Hes glad hes doing good in his class. But..jealousy really takes that away...

"Great job killer...but on the other hand...mr. error...may I have a word with you?" Nightmare says and Pat's killer on the back.

"Sure!" Error says and smiles.

Nightmare takes a hold of errors arm and drags him to the teachers lounge..

Error glitches out a little bit. He was extremely confused...what was going on..? Had he done something wrong?...

Once they had come to a stop, nightmare let go of error. And glared at him..

Error felt sadness inside of him...why was nightmare acting like this..?

"U-uhm...n-nightmare?" Error asked the angry skeleton...

Nightmare growled and backed error up to the wall...

Error was shaking and held his hands up in a protective stance..

Nightmare sighed and continued to glare at the shaking skeleton...

"I know what you're trying to do error...." nightmare said with pure anger in his voice...

Error was confused and scared at the same time...

"I-i dont k-know what y-you are t-taking about..." error said quietly...

He was just talking to killer about his grade....wait...nightmare liked killer! Didn't he! Oh shoot....I mean...error does like killer....but...he would never steal him from nightmare!...

Error felt his glitching increase as he thought about what nightmare would do to him....

Despite error acting tough in front of his students...its really all an act...error is very sensitive and scared of any slight thing that could be a danger...

"P-pl3AsE D0nT hUrT...m-Me...." error stutters as he felt tears swell up in his eyes....

Nightmare was surprised...was error really that scared of him...?

Nightmares gaze softens and he steps back from error...he does feel bad...after all...he was only talking to him...

"I-im sorry...." nightmare said as he started to walk out of the room...

Once again, error was confused...wasn't he gonna hurt him...?

Error saw that he was leaving so he quickly got up and grabbed nightmares hand...

Nightmare felt his cheeks heat up...wait...was he...blushing...? No...he liked killer....right..?

Nightmare turned around and met the eyes of error...

Error sighed and let go of nightmares hand...

"I know you like killer....and I'm going to be honest...I like him as well....but...I would never steal him from you...I promise..." error said with sadness on his voice...

Nightmare blushes a light purple...maybe...he liked both of them...

"Error....I'm really sorry...I was just...mad..." nightmare says with sorrow in his voice...

Error smiles a bit and hugs nightmare...

Nightmare blushes purple and hugs error back...

Yep...he definitely liked them both...

Error smiles and pulls away from the hug...

"Well I best be off now! I have a class in a few minutes!" Error says while leaving the room.

Nightmare smiled as error left the room...he rarely smiled...

_time skip_

Error blushed lightly as he saw killer walking down the halls...

No error...stop....nightmare likes him...you cant do that to him...

Error sighed as he made his way down to nightmares classroom. They both had breaks around this time so error usually hung out with nightmare. Like I said before, they are pretty close friends.

Error stopped infront of the door of nightmares class. He peeked through the window and saw..

Nightmare and killer kissing....

Error felt tears prick at his eyes...he knew he should be happy for them...but he was deeply upset...

But error knew better than to interfere with another person's relationship...

Error sighed and wiped his eyes...he walked away from the classroom and made his way down to his class....

At least they're happy....

_time skip_

It's been 3 months since killer and nightmare had gotten together....

Nightmare had noticed how error has been acting strange...

Hes been a lot quieter latley...he seems to be...tired...? And he has bags under his eyes....hes also never wearing short sleeves...its summer time...

Nightmare has a suspicion in what's going on....and he doesn't want it to be true....

Error sighs as he sorts through some paperwork...

Ever since that day...hes been very doubtful about himself...

He feels as if he will never be enough for anyone....

It really hurts knowing that he now barley has anyone to talk to...

Latley...hes been hearing...voices...they force him to hurt himself..

He wishes he could just be happy....

Error snaps out of his thoughts at he hears a knock on his door. Error sighs and walks towards the door and opens it..

Outside stands nightmare with killer holding on to his arm...they both had worried expressions...

Error was confused...why did they look so upset...?

"O-oh! Hey n-night! What do you need?" Error asks the couple standing infront of his door...

Nightmare sighs...

"Can we come in..?" Nightmare asks the glitchy skeleton.

Error smiled a little bit and stepped out of the way so the two could enter the room...

Nightmare blushed a light purple and stepped through. Killer followed not long after.

Nightmare looked at the ground and felt tears build in his eyes...he was extremely worried about errors mental health...

Killer whispers something in nightmares ear that makes him blush...

Nightmare looks up and glares at killer with a bright purple blush spread across his face...

Error was confused...what was going on..?

"U-uhm..? Whats going on?" Error asks nightmare and killer.

Nightmare looks back at error containing himself...

"Well...I've noticed some...changes in your behaviour....and...I wanted to check up on you..." nightmare says with sadness back in his voice...

Error was internally panicking...was ti really that obvious!?

Error sighed calming himself down...

"I-i assure you! I-i am fine..." error says while plastering in a fake smile...

Nightmare slowly walked towards error until he was backed up into the wall again...

Error felt his face heat up slightly and his panic rise....

"Have you been sleeping....?" Nightmare asks error, who was now against the wall with sweat dripping down his forehead...

Error stayed quiet and looked at the ground with teary eyes...

Nightmare frowned and pulled error into a hug...

Error blushed a light yellow and hugged him back....

Error couldn't help it...he started crying...

Nightmare felt his cheeks warm up and sorrow fill his soul....

He looked back at his boyfriend who gave a small smile and nod...

Nightmare blushed and pulled error close to his chest...he let error cry as he patted his back...

"E-error...have y-you been...harming yourself....?" Nightmare asks the crying skeleton...

Error went silent...

That gave nightmare just the answer he needed...

He was harming himself....

"Show me your arms...." nightmare said in a stern voice....

Error blushed lightly and pulled away from nightmare...he rolled up his sleeves hesitantly and looked down in shame..

Nightmare and killer stared at his arms in shock and sadness...

Nightmare let tears fall down his cheeks as he hugged error tightly...

Error gasped at the suprise hug..but soon hugged the taller skeleton back....

Nightmare pulled back from the hug and lifted errors head up...

Error blushed a bright yellow...

Nightmare leaned in and kissed error softly....

Error blushed yellow and leaned into the kiss...he kissed nightmare back and closed his eyes...

Nightmare pulls away and blushes bright purple...

Killer was smiling brightly behind them...

Error blushed and held onto nightmare...

"Error...please stop hurting yourself...." nightmare said with sadness in his voice....

Error sighs and nods slowly...

"I-i wont d-do it again...I-I'm sorry..." error says while looking away from nigthmare...

Nightmare smiles lightly and cups errors cheek in his hand...

"Dont be sorry..." nightmare says and blushes...

Error blushed but then realized something...

Killer!...

"N-nightmare! W-what about k-kill-" error was cut off by killer hugging him tightly...

Error blushes and hugs killer back...

Killer lifts errors chin up and kisses him...

Error blushes a bright yellow and kisses killer back...

The two pull back and blush...

Killer smirks at the PE teacher and looks back at nightmare..

"Error...will you be our boyfriend..?" Nightmare asks the blushing skeleton...

Erorr blushes bright yellow and smiles..

"Y-yes!" Error says...

The two taller skeletons smile at eachother and hug error tightly...

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A/N I apoligize for how bad and cringey this is! I had a lot of ideas for this and wanted to use them! I hope you like it!