***Hello, everyone! I'm convinced now that I can only write these chapters in blocks of two. I don't know. Anyways, Sans and Papyrus belong to Toby Fox, Dylan and Delanie belong to me, and let's go!

Chapter Four: Experimental

"That ain't possible. Gaster fell into the Void years ago," Sans said. He was more trying to convince himself of that, though.

"He told us about that. He fell to the first layer. By the time he fought his way back out, there was a new girl who had just started working with us. Her name is Alphys. She felt sorry for us, so instead of doing all of those experiments, she did something that didn't hurt, but was just a bit demeaning. She monitored our brain activity as 'artificial species', but told us that she was really doing it to cover for her job while treating us better," Dylan explained.

"Sounds like Alphys to me," Sans said.

Delanie pulled on her brother's sleeve, then pointed to the gap in her neck as well as her right hand's inside. "I'm getting to that," Dylan said. He turned to Sans then and went on.

"Alphys helped us get out the trackers, and she set us free after getting started on SOUL research. We ran to Snowdin. As for our hands... our real identities." He held out his right hand and opened it up, as did Delanie.

They had tattoos, as if to tell them apart by:

D-03

D-04

"So once we were let out, we had to come up with better names. Well, actual names. I liked Dylan, she liked Delanie," Dylan concluded.

Sans nodded. "I see. Because other than a few differences, you two are practically identical," he said. He turned to Delanie. "I need you to feed this information through Dylan somehow, and I need you to be totally honest. What happened to the lower part of your mouth? I know Gaster, and I know that he wouldn't forget something like that."

Delanie suddenly looked nervous. She shifted in her seat, making noises to herself. "She hasn't even told me this story," Dylan said. Delanie's eyelights began to glow pink, and she began to explain her side of things. Even if it was through Dylan's voice.

"I wasn't created like this. We always had the telepathy; we were twins in the same chamber, after all. But Gaster didn't want clones, so with a few changes, he made me into a girl but kept Dylan a boy. He didn't like having a female experiment once I began to act like my own person. He reduced my HP and stats and... well, everything. When I tried to protest, he removed my bottom jaw and reduced my capacity for thinking. He threatened to do worse. So I can't talk, a-and I might die. I'm not what I used to be," she explained.

She put her face down in her arms. Dylan's blue eyelights went out. He hugged Delanie. Well, that explained her initial (and somewhat constant) state of panic.

"You wanna know who 01 and 02 were?" Sans asked. The twins looked up, curious.

The older monster held out his hand to show the scars on the back of it from the screws of a handplate. "I was S-1, Paps was P-2," he said. "Then you guys were made like us?" Dylan asked.

"No, not necessarily. It was a long time ago. Gaster met a woman named Arial. They settled down, and they had a baby. That kid was me, Comic Sans. Few years later, another kid come. That was Papyrus. We lived as any other family would down here... until the war. Since Gaster was Royal Scientist, my mom got drafted instead. She wound up getting killed in combat, though. The king let Gaster know, and he told us. Over the next few weeks, I guess... I guess he just went crazy after losing Mom. When he finally broke, he began using me and Paps as experiments. He did one on me that reduced my HP to once. Stunted my growth to. I can see where Delanie's coming from. And to declare us his, Gaster put stupid metal plates on our hands with screws. We weren't his sons, he wasn't our dad. He was the mad scientist, we were the lab rats. When we got outta there, we ran. Taught ourselves to read, taught ourselves to write. And we made a home for ourselves right here in Snowdin over the years," Sans explained.

He got two surprised looks. "That explains some things," Dylan said. "Like you being 03 and 04?" Sans guessed. Dylan nodded.

He looked over when he felt a tap on his shoulder. Delanie motioned to where her lower jaw would've been and pointed to her brother's mouth. "She wants to speak through me again," Dylan said.

"Then go on," Sans said. Delanie's eyelights glowed pink and Dylan began to speak for her.

"He talked about someone named Ari when he was around me, and he said that he wanted her back. He had this cord around his neck all the time, but it was under his shirt, so I couldn't see what was on it." Her eyelights dimmed then. So it was actually Dylan speaking as he added, "I've always wondered what that was too."

Sans, however, had an idea. "He always called Mom Ari. And one of the last things she did, before she left us to go fight, was give Gaster her wedding band. I guarantee that her ring has been on that cord ever since," he said. The twins nodded.

Before any of them could get a word out beyond that, the door was heard opening and shutting.

"Brother, I have wonderful news!"

***For anyone who might be confused at all, when Delanie was 'speaking', she was explaining in Dylan's mind, and he spoke as he heard her voice. So it was still him talking, but just copying what she said. Just clearing that up. Anyways, be sure to leave a review on the way out, and I'll see you all in the next one! Bye!