The original post: /r/amitheasshole by /u/Past_Arm6546 on 2025-03-06 16:21:59.

Hey there so a little back story to get started I’m 28 and engaged. My fiancée came to me 4 months ago asking if her step sister could stay with us for a week (she was moving back to Washington short notice from Illinois) while she finds a place of her own. I told her from the beginning that I did not like this as we already have a roommate and we live in a double wide modular home that’s barely big enough for the 3 of us as is let alone her step sister and her 4 kids. She said it will only be for a week. I told her okay but I still don’t like it and I will not be changing any diapers from her 2 youngest. Fast forward it’s been 4 months not 1 week and they are still living in our living room step sister has a job and is at work fiancée is watching the kids asked me to change one of the youngest diapers and I refused. AITAH for feeling that it’s not my child not my problem I didn’t even want them in my house in the first place. I understand that it takes a village to raise a child but I set the boundary from the very beginning yet I’m being made out to be the ah for wanting to keep to this boundary.