PTA Sans is a series of shorts placed where Sans adopted Frisk together with Toriel. Toriel is running the local school and Sans was roped into going to the PTA (Parent Teaching Association) meetings.
About the AU
PTA Sans revolves around Sans (and occasionally other members of the main cast) directly interacting with bigoted human parents. The parents are given stereotypical names for people living in fairly wealthy suburbs though the most common names used are Helen, Linda and Diana. Sans is always in the fight in those three, though he fights with Linda the most. His attacks comprise mostly of sarcastic retorts and burns.