The first time Sans was really mad, it terrified Papyrus.

Of course, Sans had no intention of ever scaring his little brother, and he'd certainly would never take his anger out on him, it's just...

Papyrus had lived in a world where Sans was the greatest big brother ever, if not a little lazy and a little bit of a tormentor when it comes to teasing Papyrus. Sans always had a smile on his face, made bad jokes to which Papyrus would roll his eyes at, even as a baby, and Papyrus never truly really seen Sans get mad at anyone before, and he was never really mad at Papyrus either, so Papyrus never knew just how much of a monster Sans could be when pissed.

Until he'd stumble upon a scene that, in today's times, Papyrus hardly remembered, but Sans did.

It was around this time that Sans and Papyrus kind of grew apart for a bit - Papyrus still trying to develop his powers, and Sans being out more than usual; claiming he had a friend that he likes to visit, and usually don't come back home until late in the evening. Their mother would scowl at such behavior, but it wasn't like Sans was coming home beat up or anything, so she'd figured whatever he was doing, it couldn't been too bad. Papyrus never really thought much of it until he started to feel an ache that he could only describe as loneliness. He missed his big brother.

So, Papyrus thought it had been a good idea to follow his brother to wherever he was going, and if questioned, he'll just say he was bored and he decided to follow Sans to see what he was up to. The thing he hadn't foresighted on was Sans teleporting, and he had gotten himself lost because really, even if he was like eight or nine, he should have suspected Sans abusing his powers - and he even made a mental note to chastise him for doing so, but had completely forgotten due to what happen after a few minutes of wandering around in the streets.

For reasons unknown to even Sans - and in Papyrus eyes when he was young, Sans knew everything - some people have some pretty sick sense of humor. Papyrus had been minding his own business when he was suddenly shoved onto the ground, purposely. His first reaction had been to cry, and Papyrus was pretty sure he had, because the people who had shoved him snickered, calling him a crybaby. As a result, Papyrus had gotten angry, and started to fight, which, needless to say, he'd lost.

He had only been eight years old at the time, and, admittedly, his attacks were just...not good. Heh.

And of course, making a kid cry and beaten him while he was down wasn't enough, they decided to torture him too. Papyrus hardly remembered what they did, only knew that it was painful, and it felt like hours for somebody to help him, but then he saw Sans standing there, eye sockets blank, smile no longer on his face, and the blue aura that surrounded him when Sans first discovered his powers seemed more deadlier than Papyrus remembered it being. As he can recall, the aura was a soft, comforting blue, one that swore to protect at all cost. This blue seems intent to hurt someone, rather than protect.

And then there was screaming, and the bodies that had towered over Papyrus were tossed to the side, and he could have sworn the blue in Sans's right (?) eye socket was more or less blue flames than actual light. Even Sans's blue jacket seemly turned a different color - black. Papyrus had been pretty sure it was just the lighting they were under, but he doubted it, when you consider Sans's ability to force gravity on a person. For all he knew, maybe Sans could change the color of his jacket.

The younger skeleton had been in a daze, but Papyrus knew what was going on. Sans pretty much killed his future bullies, because Papyrus had saw little bits and pieces of a purple on his attackers, and the more they lingered, the weaker his attackers got. They were terrified, as they should be. But then, Papyrus was terrified too.

He had never seen Sans like that - not his big brother. Not the one that cracked awful puns and continuously tried to cheer Papyrus up whenever he was down. No, that was not his brother.

And then, all it took for Sans to stop was one look at his brother, whose expression must've been as bad as he'd felt, because suddenly, the aura disappeared, his hand, the one that was controlling his attacker's movements, stilled, and the flames...

They were slowly dying.

"Papyrus," He said, eye sockets still empty, as he dropped his hand. The fact that Sans called his name correctly wasn't missed by Papyrus even for a second. "Come 'ere."

Papyrus hadn't been sure what to do, because on the inside, he really wanted to run away screaming, telling their mother what Sans had done, but...

That was his brother.

Papyrus slowly began to walk over to Sans, unsure of what he was going to do, and when he was suddenly grabbed forcefully, Papyrus wanted to struggle, a blind panic at the thought of his brother killing him instead plaguing through his mind, until he'd realized he was pulled into a hug. Papyrus stood there awkwardly, feeling Sans tremble against him and he could feel tears dripping onto his shoulder.

Papyrus was pretty sure that wasn't the last time he'll see Sans like that.