After many days cuddling and kissing without knowing the meaning behind all action that Frisk showing to him, Sans finally braving himself to ask Frisk what love that Paps talking about truly mean. Hearing that Frisk smile and rub his head lovingly then she close her eyes while hug him tighter to her on her bed, slowly falling to the dreamless sleep.

"You know Sans... love isn't something that you can explain... but love is something that you have to feels yourself... don't worry love is something wonderful that can make like you actually complete... but be careful love can hurt you too..."
"But... how i know that's love?"
"If you care and think that person is really important to you, even you want to give all you have to them.... it's love Sans"

Sans thinking about Frisk words over and over again while watching now a sleeping Frisk, who snoring softly on his chest. He smile a bit while playing with her hair with his boney fingers.

"I don't know if this is love or not... but...one thing that i know is... you...you are really important for me"

Like actually She can hear him, Frisk hug him tighter while humming something softly to his rib cage. Sans move and place his ear near her in order to hear what she mumble over and over.

"I love you"

Frisk is really innocent person but once she fall in love with someone, she isn't person who afraid to show it. Sans blush dark blue then he buried his head on her hair... his heart trying to telling him something by beating faster and faster.

"i...i..i..love..you..too.."

Sans feels like he got slapped with sudden realization, he indeed in love with her... his soul humming happily because finally he notice his feelings and then it's attached itself to her heart with soft click. Their heart and soul combined their color itself, turning it to be soft purple color... now he can't only feel what she feels about him, but now he can also feels him too... their heart and soul beat in harmony... creating a song that only can be heard by them. Sans fall a sleep after that, with smile blooming on his face... but...dont you forget that... love also can hurt....

........................................................................

"Sans.... go.... save yourself.... i love you..."

Frisk turn around with smile to Sans who stare at her with wide eyes... blue tears begin to fall from his eyes when he watches her body fall with soft thud... her blood come out freely and life can't be seen anymore from her eyes... Sans froze... to shock to do anything until his mind snap then he scream.

His eyes snap open and his body begin to trembling, the fact that Frisk isn't by his side didn't help and he begin to cry while screaming again. Frisk slam the door, worried because she heard him scream, still wearing her aprons she rushed to his side.

"Sans!! what happened!!?"

Sans look at worried Frisk and launch himself to hug her.

"You...blood...scary...and...and..."

Frisk instantly know what happend to him and hug him tighter made him know that she still there...

"Hushh.... it's just a nightmare... I'm still here... i still here..."

Sans refuse to release her from his hug while he continuously cry on her chest... a moment latter after he finally calm down a little he look up showing his blue tears that still come out freely from his eyes.

"T-thats really scary.... i-i"

Frisk rub his head and smile.

"It's just scary dreams...don't worry kay"

Sans nodded his head but even if he do that he doesn't let Frisk get out from his sight even just a second... he follow her around everywhere... i mean like EVERYWHERE.... even when she goes to the bathroom he will stand outside the curtains and wait for her to come out...
He doesn't let her work for several days and threatened her that he will follow her to her office if she still go, until finally he calm down enough to let her go to work.

He keep having same dreams about her died in front of him, many times in many ways... and it's slowly make him insane... seeing the one that you love the most die continuously in front of you and you cannot do anything is tiring... Sans always hug her tightly when he sleep and follow ger with his eyes when he awake..

Is monster can actually have a dream?