Just a warning so people know, my version of Frisk has red eyes and their personality, much like the player, can go from pacifist to violent on the drop a dime.

This oneshot is based around what I think might happen if Frisk decides to confront Slenderman about the assaults on Sans.

Disclaimer, I do not own Undertale or any of the Pastas. Underpasta is the idea of the fabulous kjm126316. I simply collaborate with them an get permission and shiz.

In the dark woods, there stood a towering figure dressed in all black standing over two smaller figures. Normally in this situation the two figure of what seemed to be young adolescents would be screaming and running as the tall figure ripped them limb from limb. But these figures held no fear in their stances, nor were they exactly normal. Jeff the killer and BEN drowned were conversing with Slenderman, Ben telling of his alliance with the demon Chara and Jeff explaining his ire once more at not being able to go after the skeleton and co. As the conversation was ending there came a rustling from the bushes.

"Toby? I sense your and smile dog's presence over there. But I must ask, who is with...you…"

"So-sorry Slendy, I-*tic* I was walking Smile and this k-kid showed up ask-asking to see you. I wa-*tic* was just going to kill th-them when they… They predicted e-e-everything I was gonna do! The-*tic* they said if I and Smile don't want to-to die to bring them to you. I'm so-sor-sorry." From out of the bushes walked out a child of maybe twelve, in their arms was smile dog. He was clearly nervous and if you paid attention you'd notice that the child was holding the dog in such a way that if he struggled his neck would quickly be snapped.

'Hello mister Slenderman.' they signed, letting down Smile dog who then ran off, giving a polite bow.

"You, you must be Frisk. I knew you'd show your face eventually. I just hoped it wouldn't be so soon. Jeff, Ben, and Toby house now. I don't want you around this one. This, this thing is dangerous." Slenderman tried to usher the three away from the situation but Jeff wasn't having it.

"What do you mean dangerous? It's just a little kid, a weak, mute, I think blind kid! Why you so afraid Slend...y?" Jeff's sentence was broken by Frisk who had opened their inventory and equipped the frying pan and proceeded to hit Jeff so hard he fell over and blood coated the pan slightly. Before he could hit the ground Frisk changed equipment to the ballerina shoes, and kicked him so hard in the stomach he flew several feet.

"Jeff!" Ben yelled out as he ran to the bleeding and dazed teen but before he could reach him he was yanked by the hair. Frisk who was now sporting the boxing gloves was dragging the e-spirit by the hair away from the bleeding Jeff and back to Slenderman. Ben glitches from their incredible grasp and teleported next to Jeff where Toby was now wielding his axes in defence. Jeff glared at Frisk as blood slowly dripped down his chin,

"The fuck are you?" Frisk went to move their hands to form signs but stopped midway. Letting out a sigh they moved their hands to rub at their closed eyes and when they moved their hands away, bright red glaring eyes with grey sclera stared down the grinning maniac.

"I am Frisk, and I am no weak child." They spoke for the first time, their voice like the tinkling of bells, yet the sound of shattering glass. Something pure yet full of evil.

"I have ERASED this world and countless others, I have snuffed out countless souls, taken the lives of not just every single monster, but the humans as well. Don't make me add you 'creepypasta' the list of races I've genocided..." They smiled sweetly and rubbed the back of their head shyly.

"So let's just be friends okay~?" They turn to Slenderman, their personality doing a complete 180, their eyes closed once more and their hands formed rapid signs.

'Mister Slenderman, can you please leave Sans alone? If not please at least give him a month break. He's been so tired lately and your friends constant stalking and attacks are NOT helping. Thank you for your cooperation.' With a smile and a wave they began to walk away when Slenderman said,

"And what if I choose not to cooperate?" They stopped where they were and slowly turned their head to reveal the haunting and disturbed smile.

"Then mister Slenderman," they spoke, " you're gonna have a bad time~" with a giggle they ran off.