(Requested by: dragoonfyre )

(When Killer is around people, he is called Sans, but when it is just him and people he is close to, he is called Killer. It'll be more important later on in the chapter, I promise.)

Narrator's P.O.V.

"Demon!" "Zombie dog!" "Eeeew!" This was all you heard from people as you roam the streets. You were a stray out on the streets and you looked like you were ready to drop dead any second. You're a young, pure black, German Shepherd. Your rib cage was showing and your beautiful black fur was shaggy, dirty, and had splotches of fur missing all over. A small, helpless whine emitted from your throat, but no one cared enough to bother. Padding towards your 'home', you decided to head to your favorite spot. This spot happened to be the butcher's shop. They were kind enough to throw you the leftover scraps, but they barely gave you anything. They mainly gave you the leftover bones and fat, though you didn't complain. At the very least they feed you.

You slowly walked towards this butcher shop, but you were stopped by a skeleton. He had black stuff dripping down his skull and a large grin, that seemed to be fake, on his face. There was a strange looking skeleton behind him as well. This one had to large chunks of his skull missing and flame like magic coming from both areas, but the magic was multicolored, as was his eye. The multicolored skeleton gasped in shock and quickly bent down to look at you, though you immediately started to back away in fear. "Poor thing. They're scared t' death. Killer, what should we do? We can't just leave 'em here." 'Killer' just shrugged. "I don't know. Kill it? Put the thing out of its misery." "Killer! No! We are not letting this poor creature die, nor are we gonna kill it! We should take it to the vet. Maybe they can help 'em." 'Killer' moves his head in a motion as if he had rolled his eyes. "Fine, but I'm not paying for it."

"Killer, can you please be a little nicer? This poor thing is scared and we don't want 'em being afraid. They may run and we never see it alive again." 'Killer' then sat still for a moment. The rainbow skeleton hugged him and the black stuff started to disappear. You turned your head to the side, confused. "Thanks, Color. I really needed that." 'Killer' says, smiling a real smile this time. "No problem!" Color then smiles back at Killer and lets go of him. "Now let's get this little fella to the vet. Asgore knows when this poor thing might keel over." Killer then picks you up gently and starts to follow after color, who has google maps out and is looking for the closest veterinary hospital. "Ah ha! There's one a couple blocks from here and it doesn't close til around midnight." They then start to rush off towards said vet, though Killer was careful enough not to drop you.

"Hello? We're here with a dying animal. Can someone please help us?" A young, black man comes out in a doctor's coat and looks at Color. "Hello, I'm Dr. Walker. What seems to be the problem?" Color then moves out of the way and Dr. Walker sees the terrible condition you are in. "Oh my. Come with me please." He then leads the two skeletons, and yourself, to one of their rooms. "Please set them down here." Killer does as he was told and set you down. Dr. Walker then puts on his gloves and starts to check you for different things. "Well, she is a girl. I can also tell she is around a year old and is a german shepherd. She is horribly malnourished, and seems to have mange. Mange is a skin disease for mammals caused by parasitic mites. It can cause severe itching, hair loss, and the formation of scabs and lesions on their skin." Killer and Color look at the Doctor in horror. This poor dog had such horrible things living in its skin. "Is there a way to get ride of those things?!" Color asked, hoping there was some way to help you. "Yes, but it is a long process. You can come and check up on her as much as you want, alright?" They both bod and exit, leaving Dr. Walker with you.

~Time Skip~

(This is you after the months of mange treatment and being well fed.)

After a couple months of medical washings and being kept and feed by yourself, you were finally mange free and you were healthy in weight. You looked like a gorgeous, young German Shepherd once more. Your beautiful, sleek black fur had grown back and your (E/C) eyes were no longer dull, but instead a bright, happy color. You didn't know it yet, but Killer has adopted you as a surprise birthday present for Color. The vet had made sure that all the legal documents were signed and all the money was paid before Killer could get the ok. Today was the day Killer was going to take you home. "Where is she?" He asked the lady at the front desk. "Dr. Walker will bring her out in a moment Sir, please be patient." Killer almost snapped at the lady, but he say your head come out from behind the corner of the hallway and a leash following behind you. "There she is." Dr. Walker smiled. "Here's (Y/N)." You looked at them confused. '(Y/N)? Who's (Y/N)?' You never had a name, so were they talking about you? The name had a nice ring to it.

Before Color and Killer has left, they were asked if you had a name. They told the doctor no and then they both told him what your name should be, (Y/N). "Come here, (Y/N). It's alright." You then start to slowly walk over to the skeleton who was squating down to your level. His white eye lights shining happily instead of the black goo dripping from his sockets. He smiles and has his arms open for you to come and be accepted. You hesitate before walking into his arms. You then feel a firm, but gentle pair of arms wrap around you. You then snuggle into his arms, feeling a sense of security from the skeleton. He was someone you had seen before and he helped you, so you quickly grew fond of him. "Thank you, Dr. Walker. Have a nice day." Dr. Walker smiled and waved goodbye to you and Killer. "Goodbye, Sans. You as well." Killer nodded and walked you out of the veterinary hospital and towards his home. Killer didn't want to teleport with you because you have never been teleported before and may freak out. Color and him will have to practice that with you so that you can get used to it.

Killer then, after a decently long walk home, got a call from Color. "Killer, where are you? You said you were going to grab my birthday present, but you haven't gotten back yet. What's going on? Is something wrong?" Killer chuckled and shook his head. "No, no. There's no need for that. It just took me a bit longer than I thought it would have. I promise I'll be home in a moment, but I can't teleport home. I might cause a few problems doing that." Color and Killer said their goodbyes and hung up. "Color has no clue what's coming. He's gonna love ya. Y'know, he hasn't stopped talkin' about ya since we found ya. We've both gotten pretty attached to ya." You looked at him with cute look on your face. Your (E/C) eyes lighting up your pitch black face. Killer then pats your head. "Gosh, you are too cute for your own good." Killer then knocked on his and Color's door and waited. "Who is it?" He heard Color yell. "It's me! I've got a surprise for you!" Color then came running towards the door and swung it open so hard you were surprised it didn't come of the hinges.

"What's the sur- OH MY ASGORE!!! YOU BROUGHT HER HOME!?" Killer nodded and handed Color the leash. "She's our now, so (Y/N) now lives with us." Color was jumping up and down in excitement and tackle hugged Killer. You then started barking protectively, thinking Color was attacking Killer. Growling dangerously, you then nipping at Color to get off. Color finally gets the hint and jumps off of Killer. "Ok, ok. I won't do that again." You then calm down and go to lick the parts of his leg you nipped at, telling him you were sorry for hurting him. You never liked hurting someone.

"I think she'll be a great indoor dog, don't you?"

~From that day forward, you were always by their side. You were slightly more attached to Killer, but you loved them both a lot.~

(I hope you all enjoyed! Have a great day!)