YandereTale was suggested by Chilli_Writez and MiaChriztineDialogo. I don't know who owns YandereTale though .-.

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Obsessive.

Possessive.

Clingy.

Under the normal cases of young love, these words may be the first thing that pops up in your head. While some lucky youthful couples never deal with these kinds of situations, you can't really blame the couples who do. It's almost like instinct; many people believe that you only will fall in love once with your true love, and once you lost him or her, you'll be devastated for the rest of your life. Therefore, you would do everything in your power to keep your lover away from falling for someone else.

And in the cases of the ones called Yanderes, death is always the best elimination method.

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"HEHEHEHEHEHE... THIS WILL TEACH YOU NOT TO MESS WITH MY SENPAI..."

A brown-haired girl grinned maniacally at the sight of a bloodied student on the floor. Her clothes were decorated with splashes of blood, but the brunette barely noticed it. She only grinned at the dead lifeless corpse on the floor, another eliminated 'rival'.

Believe it or not, Frisk could not bare to see such a cheery and attractive girl like her being with her senpai for the rest of his life. She knew, oh she knew, that he would regret every second of living with her.

But he would never regret living with Frisk. She was the angel who saved them all, an angel! The best person for him.

"Oh look at the time," She noticed the time on her watch. It was 5:30pm. "He'll be coming soon..." She could imagine the heavenly sight of her senpai as he came to the cherry tree at the back for the school.

And then she turned her attention to the red mess on the floor. Goodness, he wouldn't like it at all.

She giggled softly, almost like a creepy doll. "And as a highly regarded Senpai, he would detest seeing ugly, FILTHY corpses like yours lying around... Look at the mess you are making me clean up," She pouted with a disgusted look on her face.

Nevertheless, she grabbed the mop and bucket that she had placed behind the cherry tree and got to work. At the same time, she pulled out the extra set of clean uniform she had packed in her bookbag.

~~~~~~~

Frisk wiped a sweat drop that trickled down her forehead. "Well... That was done faster than I thought..." She thought to herself as she walked back to the cherry tree. She checked her watch again. "It's almost 6pm, he'll be here soon..." She said giddily.

Meanwhile, a male student had started walking towards the cherry blossom tree that was stated in his note. It wasn't the first time; throughout the whole term, there was always a note in his locker by the end of each week. And each note would invite him to go to the tree at the top of the hill at school. But every time he went there, no one would ever come.

This time was different, and he was surprised that his good friend was there this time. "Huh? Hey, Frisk!" He called out to her.

That voice sounded like heaven. The brunette immediately spun around to spot a skeleton wearing his iconic blue jacket over his uniform. "U-uh, hi Sans!!" She waved in a sweet, childlike fashion.

The skeleton kept his hands in his pockets nonchalantly as he talked with Frisk. "So, you're the one who wrote the note? Man, you could have just told me you wanted to talk, kiddo." He smiled warmly, and just like always, it made Frisk's cheeks turn red.

"Well... I..." She fumbled her fingers for a while before adding quickly. "I kinda wanted to keep it a secret for once. The truth is..."

At this, Sans tilted his head curiously. "Yeah?"

Frisk's nervousness was starting to act up. "Sans..." She murmured softly, though Sans could still hear her. "There's something that I need to confess."

"Go on."

She took in a deep breath to calm her nerves. "... O-okay..." She closed her eyes; seeing Sans' face would only make her even more nervous. "Do you remember, the day that I came to the Underground?"

Sans nodded. "Yeah, what about it?"

God, that voice only made her feel even more nervous. She constantly fumbled her fingers as she continued speaking. "Well... When I met everyone, when I met you, I..." She tried to find the words. " I developed a sense of... Admiration and comfort whenever you are around... Your smile, your jokes, your laughter... They were things that looked forward to everyday of my life..."

"And," She added. "Your voice became something that I wanted to hear over and over and over again... Even when we came to this school together, I couldn't stop feeling that way towards you."

"Kid..."

She didn't bother to hear another word from him. "I think... I think I really REALLY like you, Sans... I really love you a lot. D-do you," She lost her tongue for a few seconds before taking another deep breath and opened her brown coloured eyes.

"Do you feel the same way for me?"

There was a silence at the cherry blossom tree that seemed to last for ages. The sound of the wind blowing away the petals on the cherry blossoms was the only thing they would hear.

Frisk's face was a deep red, and she could not take the silence any longer. "W-well...?" She prodded in anticipation.

Sans closed his eye sockets, heaved in a heavy breath and rubbed his neck. Somehow, Frisk was expecting the worst. She was hoping that she was wrong though.

"Look Frisk," The skeleton started. "I don't want this to crush you or our friendship, I really don't want to! But..."

"But...?"

"I just..." Sans shrugged sheepishly.

"Maybe not now, okay?"

That was enough to shatter Frisk's heart into a million pieces. "What?" She whispered quietly. She could not absorb in those words. She just couldn't.

"It's just..." Sans sighed. "I don't think that I'm ready for romantic relationships just ye-"

"Then when."

"What-?"

"When will you love me? When will that day come? When will I be MORE than just a 'kid'?!" She gushed out, tears prickling at her eyelids. In her mind, she was thinking, this couldn't be happening, it just couldn't! No no no no NO!!

"I've been WAITING for SO long..." She clenched her fists till her knuckles ached.

"And now you're JUST going to REJECT me?!"

Without a second thought, she took out a knife cover that she kept in her pocket and unsheathed it. There was no sane thought in her head anymore. After all her efforts, was it all for nothing?

No no no no NO NO NO NO. IT will NOT BE FOR NOTHING.

She began laughing hysterically with the knife in her hand and this made Sans worried. "Ki-Frisk...?" He trembled at the sight of the knife and started to back away.

"IF YOU DON'T LOVE ME, I'LL FORCE YOU TO LOVE ME..." She declared, her voice sounding hoarse, low and definitely not like her.

Before the skeleton could comprehend what was going on, Frisk grabbed Sans by his jacket and forced the knife at his throat. "F-Frisk?!" He choked out, scared and confused.

Again, the girl laughed insanely. "Don't you know, my DEAREST Senpai... I've been watching you for a long, LONG time..." There was a grin on her face that was stretched to her ears. "Watching those girls who would DARE to touch you and talk with you," A chuckle came from her mouth and that sent shivers down Sans' spine. "Well,"

"THEY SHOULDN'T HAVE."

"Kid..." There was a tint of horror in his tone. "What's up with you...?!"

"I KILLED THEM."

"You what?!"

"I KILLED THOSE WHO WANTED YOU..." She admitted her crimes without much coherent thought. "They said that they love and admire you, BUT THEY ARE LYING!!! NO ONE WOULD LOVE YOU LIKE HOW I DO..."

Sans had no words to say. This wasn't Frisk, this wasn't her at all.

Seeing Sans' unresponsive state made Frisk grin like a madman. "Now... Teleport us to my room..."

Nothing happened.

Her face twisted into one of anger. "I said-NOW!" She ordered, pressing the sharp blade of her knife into the bone at his throat. After that, a wisp of blue magic surrounded the both of them, and they were sent straight to the middle of the girl's room. Sans' pinprick eyes could spot the strange shrine-like structure at a corner of the room that had some things that belonged to him, and a cork board with pictures of some girls stuck on it. All the girls had cross marks on their eyes, however, and there was a picture of him with a pink heart drawn around his face.

Frisk smirked. "Very good, my SWEET Sanspai... Now..." She slowly leaned in and gave the side of his skull a single lick. "Let's see what I can do with YOU..."

"K-kid..." Sans muttered softly.

"Shh..." She cooed him, placing a finger on his teeth. "My dear Sansy boy, DON'T SAY A SINGLE WORD."

Again, he didn't respond, and Frisk smirked again. "Good boy..." She praised him as she guided him to her bed and attached his hands to the bed frame using metal chains. "Now you won't EVER leave me..."

"F-Frisk..."

She immediately raised her voice. "WHAT DID I SAY ABOUT TALKING?! NOT A WORD!!!"

Silence.

A lustful smile was on her face. "Now, that's right... My dearest Sansy boy...!" She commended him, joining him on the bed. "You're mine to command. You're MINE FOREVER..." She declared, hugging him possessively.

"No one would have you... But ME..." She licked his neck, making him moan irresistibly. Those moans made Frisk scream. "Oh... How I LOVE your moans Sansy..." She said mesmerized before her hands snaked underneath his school shirt and grabbed one of his ribs. "Can you moan some more for me?"

"Urgh...! A-agh!!" Sound after sound after sound escaped from his mouth and each one made Frisk lose more control over herself. "Oh my GOSH!!! I ADORE the sounds that you make, Sansy. They are SUCH a DRUG to me..."

Determined to hear more, she continued to feel her way around his whole ribcage, touching and pressing against each and every rib her fingers could find. The moans in her ears, her body pressed against her lover's, there was nothing that could make this moment any better for her.

Or so she thought.

When Frisk's hands touched a part of his spine, a wave of blue magic suddenly broke the chains that were holding Sans down and he shut his eye sockets like lightning. "THAT'S IT...!" He exclaimed suddenly, pushing the brunette away from him.

Taken aback, Frisk widened her eyes. "What...?"

She watched as Sans took in deep heavy breaths, trying to calm himself down from losing his head. Then, he screamed.

"I CAN'T TAKE THIS ANYMORE...!"

And suddenly, the pupils in his eyes looked exactly like a predator's.

(Uhhhh.... There is tongue action beyond this point so beware.)

Immediately, he pulled Frisk towards him again and planted his teeth against his lips. The girl could barely gather understand the situation before Sans started to suck her lower lip.

It all happened so quickly, too quickly, after that. Sans eased her mouth open with ease and his tongue slithered into her mouth, exploring every single spot and tasting her saliva. He continued this for ages, doing it again and again and again but he would never be satisfied. Instead, he was greedy and kept licking the insides of the human's mouth, relishing the warmth and even the moaning sounds she was making.

It felt like hours had past when Sans finally parted from her mouth and a trail of saliva was drawn from her lips. With her cheeks as red as tomatoes, Frisk stood frozen to the spot on the bed, her yes still widened and her lips slightly parted.

And then, Sans chuckled deviously. "Finally..." He said to himself. "After SO long... I've finally... done it..." He breathed in a few deep breaths as he continued to chuckle.

Now, it was Frisk's turn to stay silent. Nothing in her head was working.

Meanwhile, Sans smirked and caressed her cheeks gently. Oh the warmth on her cheeks! It was so sweet and such a powerful sensation on San's bony fingers. "Oh my precious, precious, precious Frisk..." He murmured, still smiling that damn smirk. "You are such a naive, innocent, pure, PRECIOUS little girl... No, you're MY precious little girl..." He corrected himself, shaking his head.

Finally, the brunette found her voice again. "W-what are you talking about... Sanspai...?"

The skeleton chuckled again. "As much as you're obsessed with me, Frisky," He started.

"I'M ALSO ALL OVER YOU..."

She could not believe her ears. "Huh...?"

"Everything you do, everything you say... They're so addictive and like adrenaline..." He shivered in excitement. "They make me feel so happy... And I love you so much that I would do EVERYTHING to make you MINE."

"S-Sanspai..." It almost felt impossible for this to happen. Her senpai was someone... just like her? Was her fate really that sweet to her today?

"And then," He continued, leaning in closer to Frisk's forehead, his animal-like eyes staring into hers, his voice getting deeper. "When school boys wanted to take you away, they wanted to take MY human away from me... I had no choice but to do what I could to DESTROY THEM."

Frisk soon felt something wet on her ear and she immediately shook her head in response. "S-Sans!!" She complained.

Sans laughed, his voice now sounding a bit more good-natured and less psychotic. Though there was still a hint of possessiveness in his tone. "I'm so sorry that I rejected you earlier, my dearest Frisky. Truthfully, I thought that I would burst right in front of you." He admitted before nuzzling her hair. "But if you promise to always have me in your life... I will do EVERYTHING I can to have you for all of mine."

At that moment, there was nothing else that Frisk could say. "You already know my answer to that... Sansy..." She smiled at him, just like how her dere side would.

"Hehehe... Now isn't that a good girl..." He wrapped his hands around her slender body.

"MY good Frisky..."