***Hello, everyone, and Happy New Year! I would have uploaded this yesterday, but it was my brother's birthday and I also had a ton of homework to complete. So this does reference my one-shot On My Own, although Kamen does seem to hit the higher points of it. Anyways, Alphys and Undyne belong to Toby Fox, Kamen belongs to me, and let's roll!

Chapter Two: Seriously?

Undyne raised an eyebrow, clearly not buying it. "Can ya prove it somehow?" she asked.

"Just ask me only what you think your brother-twin brother, to be exact-would know," Kamen said. So, Undyne did just that.

"When's our birthday?"

"November 19."

"Which one of us is older?"

"I am."

"By how much?"

"Two minutes."

"So close. Anyways, what were our parents' names?"

"Jasper and Onika Undying."

"Would we ever have gotten to meet Dad?"

"No, he died in the war before Mom had us."

Undyne nodded-every answer was correct, or seemed like something only a brother would know. "Fine. Come in," she finally allowed.

"At last," Kamen said. He walked inside. Undyne shut the door and lead him to the living room.

"H-hey, Undy-" Alphys stopped mid-sentence. It's not every day that you think you're seeing two of your girlfriend.

Kamen, however, felt his SOUL skip a beat. He sat down on the arm of the couch where Alphys was. "And what would your name be, beautiful?" he asked.

Alphys blushed madly, feeling about seven different types of awkward just then. Until Kamen was pushed off of the arm of the couch and into the floor.

Undyne sat down next to Alphys, a protective arm going around her shoulder. "This is Alphys. And she's my girlfriend, punk!" she snapped.

Kamen stood up and looked a little disappointed. Then, he actually thought of something else. "Huh. I didn't know that you were a lesbian," he commented.

"If you have a problem with that, I'm kicking your butt and then kicking you out," Undyne said simply.

"C-can you please t-tell me who you a-are?" Alphys asked.

"Kamen. Undyne's older brother," Kamen replied. "Twin brother that I didn't know I had until about five minutes ago," Undyne added on.

Alphys' eyes widened behind her glasses. "...oh my God," she said simply.

"That's about how I feel about it. However... Kamen here says that he's known about me his whole life," Undyne said. "Then wh-why didn't you c-come to her sooner?" Alphys asked.

"Well, gorgeo-" Kamen caught Undyne's look just then. "Anyways, that circles back to a long story that ultimately leads up to right now."

"We both have time," Undyne shrugged. Alphys nodded to agreed. So, they turned to look at Kamen, who sat on the couch next to them.

"Well, we call it a story of separation at birth, it seems like. The only baby Mom took home from the hospital was Undyne. I was left. An orphanage-or a sorry, sorry excuse for one-kept me until I was about... eight or nine years old. Then, I was moved to foster care. And I was passed from home to home to home. Some abusive, some caring, some about so-so. Only half of 'em even learned my name. When I was eighteen, I took up residence anywhere I could get. Never had a permanent home. But I did learn, however, that I wasn't alone. Because I began poking around family records in the Snowdin Librarby when I slept in there one night. And lo and behold, what did I find? My family. Deceased mother, deceased father, my living self, and a living sister. One living, successful Undyne Amali Undying. I had to do some digging after we got to the surface. But I found ya! With a nice house and a beautiful girlfriend. And I've. Got. Nothing," Kamen explained. He looked at Undyne. "And what did you do?" he asked coldly.

"Lived with Mom for seven years, was homeless until I was nine. I got adopted, then joined the Royal Guard at eighteen. I worked my way up to the Captain and I held the spot until we got to the surface. I got a job as a cop and moved in with Alphys," Undyne explained.

Kamen looked at his sister's girlfriend. "And there ya have it. The stories of the Undying siblings," he said.

Alphys nodded. Then, she noticed something. "Wh-what's your tattoo?" she asked.

Kamen looked at his arm. "Don't bother with it," he said flatly. So, Alphys decided to agree to that. For now.

"Well, other than hitting on taken girls," Undyne said, "what else do you do?" Kamen looked at her. Then, he stood up and summoned twin katanas. "These come in handy," he said.

Undyne whistled, impressed. "Do you wanna go?" she asked. She held out her own spear.

"Please, n-not in the h-house," Alphys sighed.

"Oh, yeah. She, ah, has a ban on weapons in the house. Even for cooking, which is another thing I use weapons for," Undyne said.

"Then we'll take it outside," Kamen said, grinning.

Brother and sister put away their weapons for the moment and went on outside.

Two things were on Alphys' mind. The first was that feeling that she didn't or couldn't quite trust Kamen. The second was the surprise that Undyne's middle name was Amali.

***The date November 19 and name Amali were just kinda taken out of nowhere. Anyways, be sure to leave a review on the way out and I'll see you all in the next one! Bye!