Author's Note: Hey everyone, sorry if this feels a little rushed. I've been feeling motivated to write but like I mentioned, gotta do it after the boyfriend falls asleep. I'm not sure if ya'll have noticed the chapter titles but I've decided that any that begin with "Under" will be from first person Frisk, and anything with "Over" will be third person Sans. Enjoy!

Chapter 3: Overlooked

Sans sat on the edge of his bed, pinching his brow and let out a deep sigh. He thought back to the young human's questions about what she saw her first night in the living room.

Sans covered his left eye with his palm, thinking: "i need to be more careful."

He looked down at his hands and arms, feeling very exposed without his jacket. He didn't know why he allowed Frisk to actually wear it. He smiled however, remembering how flustered Frisk looked, he had to admit the kid was rather cute.

Something flared up his in chest though when he thought about her face. He looked down to see his soul emitting a dark blue glow beneath his shirt and for a moment he was afraid. Ever since he met Frisk, Sans felt a strange familiarity with the girl. Which hey, these kinds of things happened right? Déjà vu periods or whatever. But Sans felt like this was more than just a hunch, but instead a warning.

Sans turned his head and cracked each side of his neck. "perhaps a memory of a memory…"

Frisks face. Sometimes when he'd look at her, she looked different. He decided ever since their first encounter, he would need to watch her carefully. Sure he could watch her every move when she was awake, but what about at night?

Sans' powers were not limitless, however he began to dribble with notion that if Frisk was hiding anything, it would be in her head. By no means was Sans able to read minds, but what about dreams?

Sans figured that the point of time a person's mental guard would be down must be when they are in their deepest part of their REM cycle. If Sans could transport himself anywhere, why not someone's dream? He hoped Frisk would fall asleep quickly, Sans was anxious to test his theory. He closed his eyes and transported himself downstairs to the dark corner of the room Frisk had investigated that first night.

The handful of nights Sans watched the girl sleep sure made him feel like a creep, but he had to figure out the telltale signs that Frisk was in deep sleep. Sitting on the floor, resting his hand over his bent knee, Sans stared at Frisk's face.

Remaining as still as absolutely possible, Sans realized Frisk was still not asleep. She must really not be able to sleep in the cold. Even Sans had to admit, the room was making him feel cold which was difficult to do.

Frisk rolled onto her side, facing the TV. Sans watched as she sat up a little and reached down to where she sat her glass of water on the floor. After taking a sip and setting it back down she looked around. Again, she stared at the corner Sans was sitting in.

"could she see me?" Sans worried, being careful to not give any sign of existence.

After about a minute, Frisk pulled the fur-lined hood over her head and let out a sigh. She fluffed the pillow under her before flipping onto her back and closed her eyes.

Sans prayed this time Frisk would fall asleep. Sans waited. After about thirty minutes he slowly rose and walked out of the shadows. His left eye glowing in order to see better as he prepared his magic.

Sans hoped he wouldn't wake the small girl when he would attempt to enter her dreams, not because he didn't want to be caught but because he never saw her so at peace.

During the day Frisk seemed happy and content with life, but he would catch glimpses of her where she wouldn't. These glimpses were not like when she'd look different, but instead she just looked sad. Sometimes her smile just couldn't make its way to her eyes…

"takes one to know one i guess." Sans whispered under his breath.

Frisk gentle expression brought a small smile to Sans. "well it's now or never…"

Sans very slowly reached out his fingers to the side of Frisks head, pointer finger resting gingerly on her temple. In his head Sans calculated the proportions and directions to control his magic. Very carefully he sent small tendrils of blue sparks through his phalanges and out of the very tips into the girl's skin. Sans closed his eyes tightly, this amount of concentrated energy had to be controlled as delicately as possible, Sans couldn't predict if any damaging results could occur if he slipped up by the tiniest margin.

Gradually, Sans felt the blue energy slither into all the crevices of Frisk's brain before finally gathering between the thalamus and cerebral cortex. Sans felt his eyes roll in the back of his head before—

"You're going to be late my child."

Sans heard the voice call out from downstairs. He looked around, he was standing in a long hallway leading to stairs. There were several doors on either side of the hallway, some open and some closed. "that voice…" Could it be?

"Coming mom!" A girl skidded out of what looked to be a bathroom, quickly drying off her brunette hair with a towel. When she turned to go into another room, she looked directly at Sans.

"What are you doing up so early lazy-bones" She laughed, running her fingers through her hair, trying to get it to stay in place.

Sans breath hitched and he felt his blue heart stop for a second. This was Frisk. But this was not the same Frisk he was accustomed to, this girl was no longer what he'd call a child. Her face was longer, sleeker along with the rest of her body. Her hips and chest filled out in a flattering way as well. She still had the same curious look in her eyes, but something was different. There looked to be a determination in her soul now. Sans felt sweat on the back of his neck, he realized he had now been gawking at an older Frisk without answering her question.

"what are you doing up?" Unsure of how he should reply.

"Getting ready for school dummy. I have an important meeting with the council later though today I'm not looking forward to." She pouted her lip before tossing her towel into another room and sped down the stairs.

Sans used this opportunity to peak into the room Frisk went into, seeing now it was a bedroom. He looked down the hall one more time before stepping through the doorway. The bedroom was small but cozy. The sunrise basking a yellow light onto the lavender walls and her desk which was decorated with various knick-knacks and a couple plants. A yellow flower caught his eye, for a moment it looked like it moved. He shook his head, "what a strange dream" but as he thought this he saw photographs on the wall. There were pictures of all his friends posing in cities and places he had never seen before. "maybe one of these can help me see what Frisk is hiding…"

Sans froze. There were several pictures of himself, always with Frisk though. He looked and could see how she aged. Each new picture portrayed the gap between the two closing, one picture he had his arm around her shoulders but the next his arm was around her waist. She didn't have any other pictures like these with anyone else.

He shook his head, for a moment everything in the room became transparent before settling back into place. "she's going to wake up soon, i need to hurry."

Before turning out of the room he did notice his very own coat was laying in Frisk's bed. "She must remember in her dream that she was sleeping in it" Something told him though that there was more going on here.

He tried to transport downstairs but realized his powers didn't work in her dreams. "damn… not only do i need to hurry but i'm using up all my magic just trying to be here."

He waltzed down into kitchen finding Frisk hastily eating breakfast. A tall white goat looking woman turned to greet him.

"Good-morning Sans, I didn't expect you to be up. Do you want any breakfast?" The woman asked, already pulling a mug and plate out of the cabinets.

"sure, what's on the menu?" Sans felt himself saying, might as well try to fit into Frisk's dream.

Sans couldn't place that voice however, it felt so familiar. He sat down next to Frisk who scooted her seat closer to Sans at the same time. Even the goat-woman eyed Frisk but didn't say anything.

Sans slowly took bites out of his cinnamon oatmeal, listening to the back and fourth conversation between the woman and Frisk. Why did Frisk keep calling this woman Mom? To his dismay the kitchen began to fade, he didn't know whether it was his magic or if Frisk was waking up. There still had been no signs of if Frisk was hiding anything.

"All righty I'll see you all later." Frisk got out of the chair and slung a bookbag around her shoulders and gave a small wave with her back turned.

The goat woman followed behind her. Sans decided to walk toward the window in the kitchen that faced the backyard. There was a rather large garden with golden flowers and other shrubbery. Past the green grass was a small forest, not as dense as the one near Snowdin, but definitely far enough out that it looked like a great place to escape to. He squinted, seeing a figure of what seemed to be a person back by the tree line. The backyard began to fade in and out, his line of sight tunneling. He placed a hand on the glass, trying to steady himself.

"what… or who is out there?"

Sans squeezed his eyes shut, the dream around him caving in. He felt as if his entire being as being shot through a straw. In a matter of seconds he collapsed on the floor, back in the living room. His finger tips were still producing blue sparks of light. He used his other hand to sit himself up on the floor, and rubbed his head.

"Sans…?"

He looked up and saw Frisk with a terrified expression on her face. Before he knew it, she climbed off the couch and raced out of the front door.

Sans caught a reflection of himself in the TV screen. "shit."

Author's Note: Thanks for reading this chapter! Please leave reviews! They motivate me to come out with new chapters sooner!