Error groaned and put a hand up to his skull while sitting up from his slumber on his bed. Right after he did, his entire bottom started to feel good. He could only guess that he was in his heat.

By now people should now what heat is. It's a sort of monthly thing that humans and monsters have to go through. These... are mostly for omegas. 

He stood up from his bed and went to his drawer ''Hurry...'' He murmured taking a capsule from his drawer that was filled with suppression pills. 

It was supposed to be full... but when he opened it he saw nothing.

''N-No... It's empty...?'' He shook it then flung it upside down. It was empty.

The skeletons that lived in this mansion, Nightmare, Dust, Horror, Cross, Killer, and Error.

The first ones to present themselves were Nightmare and Dust. Both of them were alphas. What a good ranking for the two top members.

''I suppose it was meant.''

''Feels great.''

The second one was Horror and Cross. Assuming cause they both didn't change they were both betas. meaning that they really didn't care much about the alphas orders. Especially Dust's since Horror had a best friend relationship with him and Cross really didn't want to follow his orders.

''Lol. Got the best role.''

''Is this a good thing...?''

Then, there was Killer and Error. Both of them were omegas. But this really didn't come as a surprise to the gang when Killer presented, it was a surprise when Error presented himself as an omega.

''Awesome!''

''W-What...?''

So both of them made a commitment to helping each other out. Like getting the pills they needed every month for themselves. And that the last one to take them was to replace them immediately.

Error stumbled back in fear ''F-Fuck! Damn it, Killer... You said that you'd replace them this month since you took my pills instead of getting yours...!''

''Why me...?'' Error mumbled before looking at his alarm clock. It was in the quarter to 10 in the morning. 

This means that no one is in the mansion. They were all either just roaming around or doing work.

Error walked out of his room and downstairs towards the front door, in doing so he bumped into the wall by the door with his bottom. Now realizing that he had already summoned an ecto-body. The faint glow going through his pants and a patch of wetness by his hipbone.

''Perfect...'' Error mumbled putting a hand on his bottom, it was wet. This was bad, it was now risky to go outside. Error groaned silently before looking back at the clock, It was now 11. 

'W-Wait... Someone's bound to be back by now--'

''Im baaacckkk!'' Somebody yelled from downstairs. Immediately Error ran to his open door and slammed it shut. 

Horror perked an eyebrow to hear the sudden ruckus from upstairs. He went up and towards Error's door since he knew that he was the only one home right now. 

''Error?'' Horror put his skull against the wall only to hear a light moan ''G-Go away...'' 

Horror stumbled back surprised ''Eh?! Eh!? What did I do!? Heeeyyy, Error!'' He kept yelling in which was sent as super annoying to Error.

"Errooooooorrr! Come on, answer me!"

"I-I'm in heat!" Error yelled and Horror froze on spot for a few before chuckling "Oh uh... Sorry I didn't know..." He responded with an apologetic tone Error could sense.

He was let in his room, Error didn't realize it was Horror who came in he just ran in his room for safety.

"It's... It's okay. Betas aren't aware of scents.'' Error hugged himself with the pleasurable sensation still going. He moaned ever so quietly and Horror looked at him with pity before an idea went inside his head.

''I can go get the pills for you!'' He yelled and Error looked up from his hugging ''N-No!'' He retorted out looking down again ''I don't want to be left alone here... can you just... hold the door for me until Killer gets back? Tell him to get new pills when he does...'' He mumbled and Horror saluted ''Yes sir!''

. . .

It was now 12 in the afternoon. An hour since this scenario had happened and Error can't control his breathing and moans anymore. He'd been panting and moaning for the past 30 minutes and Horror sat in front of his door still waiting.

''Im back.''

Horror flinched from the voice that came from downstairs. It was Nightmare. He was back now.

''God damn there was more work than usual--'' Nightmare cut himself off when he took a deep breath, the smell was sweet. Too sweet.

He looked up and at the stairs with his eye pupil now glowing bright blue ''Is someone home?''

Error moaned and put a hand around his mouth to try and suppress himself. Nightmare heard it and started to go up the stairs.

''I know you are here. Error.''