A Certain Obsession- Undertale Sans X Reader

This story is about when Sans Takes Frisk to Alphys's lab to pay a visit, One of Alphys's broken machines was accidentally started up by the young, Child named Frisk. (10 years old) the machine shoots Frisk with a layer causing her mind to transport to Her future 17 year old body that comes to the present. So, Frisk changed from ten, to 17. Now that's she's 17, Sans has a right to actually date her. But will everyone let it fly? Or stop it from happening? Find out in "A certain Obsession" by me.