You still remember the first day you met Gaster!sans. He was about a foot or two taller than you and had the appearance of a Skeleton, though he wasn't as defined as one. In fact, he seemed thicker boned, with two cracks that run along the top and chin of his skull. He had holes in the centre palms of his hands and a smirk that spelt out trouble.
His leather jacket was of the darkest night, and his single mischievous yellow eye light could be confused for the sun on a hot summers day. You remember the first day you met him clearly; you were camping with some friends by the trash yard when you fell down a waterfall. When you awoke, you were halfway under in a pile of trash, he was standing a couple meters away from you with a confused smirk.
His bright eyes seemed to bore through your very being, causing you to freeze in sheer horror. No matter how close he got to you, your body refused to turn tail and run. You began to shiver when he knelt down to your level. His gaze showed confusion rather than hunger or malic. He spoke in a smooth, smokey, almost alluring voice. It nearly caused you to drop your guard.
"Hello, beautiful. The name is Gaster!sans, Gaster!sans the sexy. May I ask what your lovely little name might be?" you recollect him asking. You also recall your response; your body finally began to work. When it did you screamed at the top of your lungs, taking off in any direction away from him.
He was a monster. All your life you had been brought up to fear them. You were convinced that he was going to gobble you up and eat you whole. Even though he is a skeleton, so he probably wouldn't be physically capable of that.
After a week of being on the run, you found out that you fell down into the underground. The last human who fell down here mysteriously disappeared, along with the King and 6 other human souls. From then on, Queen Toriel took charge of the underground, declaring that every human who fell into the underground was to be treated fairly and not hunted for there souls.
A pair of skeletons, Papyrus and sans, took you into their home after you started looking for a place to stay. They are really nice and even turned their garage into a bathroom just for you to use. You share a room with sans, it might sound awkward but it's actually pretty decent. The only bad thing about it is the pranks; up until then you never knew a skeleton could have a tongue.
You don't know why, but you haven't been scared of any of the monsters you've met so far; except for Gaster!sans, and He still scares you. Something about him just screams 'I am going to eat you', and you don't like it. Every time you run into him, you can't help but scream and run away, in fear that he might, one day, swallow you whole.
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One day, you decided to go out to the market to stock up on food for the Skelebro's, since they were running out and you were tired of eating Pap's spaghetti all the time. You marvelled in the children playing catch just outside the bakery, it kinda made you feel like Muffets was the place to go.
When you came close to the stall, you froze and yelped. There, standing just outside Muffets bakery, was Gaster!sans, looking scarier than ever.
You realized your mistake when Gaster!sans turned to you and started approaching. Like before, you froze with terror, unable to move. When he drew closer Monster kid just happened to miss their catch. A ball rolled into his path.
"Hey listen I'm not go-," was all He could say before the most terrifying moment of your life occurred. That's when he stepped upon that loose ball. It caused him to lose his balance, and he fell towards you.
