She Gave Her Sister an Ultimatum After a Party Trashed Her Apartment

By Messy Marge · Updated November 2026

A 25-year-old woman says she left town for a weekend and let her 20-year-old younger sister stay at her apartment. She came home to marked walls, a stained couch and missing makeup after a party with dozens of guests.

She told her sister to either help pay for the damage or move back in with their parents. Their parents sided with the sister, and the story landed on Reddit’s r/AmItheAsshole. TwistedSifter reported it on November 4, 2026.

The Original Post

The Short Version

According to her own account, the poster is 25 and her younger sister is 20. The poster went away for a weekend trip and asked her sister to apartment-sit.

While she was gone, the sister threw a party with dozens of guests. The poster came home to marked walls, a stained couch, ruined personal belongings and some missing makeup. When she confronted her sister, the sister brushed it off as no big deal.

So the poster laid out two options: help pay for the repairs, the cleaning and the damages (not the full cost), or pack up and move back in with their parents. Their parents were angry and told her she was being far too harsh. As TwistedSifter put it, the family has been divided since.

What the Internet Said

The TwistedSifter write-up does not spell out the thread’s comments, so we will not guess at a vote count. What the outlet does say is that its writer backed the poster and called the ultimatum the wake-up call the sister needed. The article also points out that the sister both partied carelessly and then waved the damage away, which is the part that seems to bother people most.

The parents’ reaction is the other talking point. Some readers of stories like this ask why the parents took the younger sister’s side when the person with the damaged apartment is the one who got hurt.

Marge’s Ruling

I’m on the poster’s side. She trusted her sister with her home, and that trust came back with stains on the couch and missing makeup. The sister could have owned it, apologized and offered to help. Instead she shrugged, and that is what turned a messy weekend into an ultimatum.

The ultimatum itself is fairer than it sounds. She did not ask for everything, only a share of the repairs and cleaning, and the other option was a return to the parents’ house, not the street. Mom and Dad can have feelings, but they are not the ones who came home to the mess. The lesson for next time: no more apartment-sitting until the first bill is settled.

Cast Your Vote

Marge has ruled. Now it’s your turn: pick a side below, then see how the Goblin Tavern on Discord voted.

Keep digging: the borrowed-dress verdict, the flew-home-early sister verdict and more Reddit drama verdicts.

Sources

• TwistedSifter: Woman finds her sister and her friends have trashed their shared apartment, so she gives her an ultimatum (November 4, 2026)