This longer than i expected XD

Frisk and Sans live happily in Sans and Paps house. When the first time Frisk come back and face Paps, he is so happy till he refuse to let go of Frisk until she must bathing in Paps tears...
Her bros move with her to the house of skelebros too because they are simply afraid that she will disappear if they not close enough with her, and because of that this house is now full of people .....................who working as thief.................. well exempt Paps who they think to innocent to do this kind of job....

Strangely Frisk didn't have another amnesia after her bros give pieces of their memory to her....Alph say that her bros memory is not to intense to her to remember than Sans's who already become her memory even till her subconscious, and maybe that's why sealing her memory with his memory will give her an after effect...

In other hands, her three bros forgot small pieces of their memory about her, like what she hate to eat, her promise, her age, her birthday etc...but that small memory lost is easy to recover even if Alph didn't give them the red pills...but of course that small memory lost not gona make BP forget about his debt...
.
.
.
That day, Frisk decide that she will teach Sans how to steal, so he can help her like he promised.... well is not that she want him to steal, he already have three job that take all his energy... but he still want to help her more with this...

Frisk heart can't take another love from him or she sure that she will drown...

Frisk day dreams is cut of when she saw a man that wear a fancy clothes get out of his car, he stond there and checking his watch often, clearly waiting for someone... good target..

"Sans we found a good target there..."
"Hmm... i can't really sense anyone that guarding him, so maybe this gonna be easy pitchy..."
"Shhh... rules no 1. Never look down on your opponents... you will never know what will come to you...we need a distraction.. "
"How?"
"I will distract him, you have to sneak her wallet with your magic"

Sans face twisted into concerns and worries..

"No! To dangerous! "
"Believe in me Sans... "
"NO!"

Sans grip her hands, refuse to let go...but that day is not a good day to argue, because....she....is PMS...and he is screwed...
"WHY DON'T YOU BELIEVE ME!?"

A vein pop on Sans head, feeling angry as well....maybe he is PMS too....

"I JUST WORRIED A BOUT YOU WOMAN"
"NO YOU JUST WANT TO CHAIN ME DOWN!!"
"WHAT!!! HOW CAN YOU SAY THAT!! I NEVER DO SOMETHING LIKE THAT!!"
"YES YOU ARE!!"
"OHHH!!! I KNOW!! THAT TIME YOU TELL ME IN THE FOREST! YOU ALREADY TAKEN HUH?! YOU NEVER YELL AT ME NOT EVEN ONCE! I BEAT YOU LIKE HIM TO FUCKING MUCH THAT YOU YELL AT ME SO I DON'T HAVE BOTHER YOUR LIFE ANYMORE!!! THEN FINE!!"

Sans turn around leaving Frisk who watch him with shock, he walk with shaking body, probably to angry to do anything even for walking... the realization slap Frisk hard on her face, how can she didn't notice it? Sans probably very tired now but she only make it worst by slapping him with her words when he only want her to be safe? What kind of person is she!! She must clear this misunderstood before Sans could teleport away...

Frisk hug him from behind, not caring that his body shaking so hard that begin to shake her too...

"Im sorry...."

Silence answering her and that enough to make her scared...

"I'm sorry..."

She repeat, his body already stop shaking but still refuse to turn or answer her...

"Sans..."
"What do you want?"

His tone is like ice, she know he doesn't mean it, he only hurt and she also know that he can't deal with his own emotions that much...

"I need to tell you something.... "

Once again silence covering them.... Frisk sigh sadly....

"I-im bot taken....my-my bro told me to say that, he said the relationship is not good, especially when you have huge debt...so...so i lied...i lied to you, im sorry!!"

Silence....

"Im sorry...please forgive me, i don't care if you don't want to help us anymore...but please Sans dont hate me..."

Frisk is sure that Sans will throw her away and will leave her there, but then he only sigh and turn around to stare at her...

"Is that true?"
"Yes...."

Sans hug her really tight that she must struggle to breath...but seeing his relieved face, she can't do much but hug him back...

"Oh..God im so happy.... "
"I'm sorry..."
"It's okay sweetie, at least i know you not cheating on me... "

Frisk laugh...feeling the last burden in her soul begin to fade away in his arms...

"So ready to action? "
"Hack yeah!"

Frisk come out from her place, she wearing a red stunning dress that catch all the attention around her, but strangely her and Sans lil outburst didn't disturb that man even a little, he still stand there and keep glancing at his watch....
With slow step Frisk approach the man, and do her job...... Frisk holding a small cup of coffee in her hands and bump with the man.... she let out a small gasp and bring out a tissue to wip his jacket

"Ahh im sorry Mister, i don't watch where im going "

She send him the most adorable look that can make every man bow down to her.... She almost want to run off when she saw him checking her out and smirk evilly....

"Don't worry miss, is not that expensive... but maybe we can grab lunch after this in return "

His arms hold her wist, trapping her in place...his evil smile never wear off from his face...he don't even felt his wallet already gone... and he will regards his action second later because Sans suddenly appear besides Frisk and grip the man arms.....hard!

"I believe that you are touching someone girl out there budy, i don't know that you want to lose an arm that much"

Sans big grin never vanished from his face but in it also promising the man death if he refuse to cooperate... the man let go of Frisk and run away from them and calling someone on the phone that he cancel thr meeting...
Frisk sigh in relief, Sans come in a good time or she maybe already being dragged by the man...but something was off, Sans got silent once again...

Sans walk away leaving Frisk who confused from his action and don't have much choice but following him.....to the dark alley

( DON'T WORRY PEOPLE!!!! NO LEMON AHEAD!!! )

"S-sans?"

He stop when they already deep enough in the alley...then he show the wallet to Frisk who ready to take it, but....sans snach his hand back...

"Steal this from me"
"Wha! But Sans!! How can i steal it from you...you alredy know that I'm gonna Steal it!"
"You stole for a years right...this surely not gonna be a problem for you"
"........fine! "

Frisk take a step closer to sans who watch her with curious eyes... he held the wallet with his magic above his head so she can't reach it....
Frisk touch her shoulder, bringing their bodies closer in process... Sans soul begin to thump in nervous hum... and he lower his head...

Frisk laugh, but it's not joyful laugh that Sans used to hear, but a laugh that sent a shiver on his bones.... so dark and sexy...
She lift his head with her fingers, rubbing his cheekbones with her other hands lovingly....

"Hm...why feeling so shy all of sudden, bone boy? You want this right"

She whisper seductively on his skull making him shiver more, then without a warning she lick his teeth....making him madly blush deep blue...

"Oh..you are blue...you know....i like blue...especially... the ice cream that you buy to me that day....so sweet...i wonder...are you taste like them"

Once again Frisk took Sans to surprise zone by licking his neck bones that made Sans jolt when his magic went nuts and brust, he jump back several feet then slumped there....the wallet was dropped on the ground when he jump...
he froze on the floor, he cover his glowing blue face in his hands refuse to look up...till Frisk approaching him with laugh..

"Come on Sans, you know that the only way i could win"
"A-are you use it to other people? "

His voice is shaking from shock...

"Nope, only you..."
"Im glad, Im sure your future husband not gonna like it"
"Huh?"

He look up, his face is sad...and it's make her scared

"I never tell you that i can see a future? "
"No you never told me before "
"Well... you see....that person that gonna marry you is pathetic person, good for nothing and barely make you happy..."

He girth his teeth in anger, and Frisk heart drop....so she not gona marry him?

"But....he love you so much....i can see it...he even will die for you"
"Who...? Sans it's... no this is wrong "
"Frisk.....the guy that gonna marry you is, uh...maybe is the most unfortunate thing in your life but....he tried his best...."
"Sans....who?"

Frisk eyes watering, she can't imagine that must marry another man and not Sans, it's just not right for her! But when Sans look at her with look full of love and bring out a box from his hands Frisk eyes let out a single tears out...

"The guy...it's me, Frisk.....please marry this pitiful monster "

Not wasting any time, she jump to him and hug him close while crying her eyes out

"YESS!!! You are wonderful Sans!!! I lucky to have you, you are not pitiful! You are strong you are everything i need!!"

"I'm glad i meet you"