Ipliers, Septiceyes, And Sans AUS X Reader

Challenge

I want you people to give me and Alter ego (Mark or Jacks), give me enough a total amount of words (like 10) and the story had to be that long.

Rules

1. Has to be 10 or more words

2. The ego has to be Mark or Jacks

3. Only one ego per story

4. The highest amount of words can be 200

Let the challenge begin!