Is OTHER wrong in the post ? POST : My sister, her husband, and their two kids live with me right now as they just moved here from another state. It is a temporary situation until they can find a house, but it is likely they will be living with me for several more months. My husband and I have a 7 month old baby and though we are not complete introverts, we are not the type of people that frequently have people over and we are often exhausted from working long hours and taking care of the baby.
I came home one day to a random girl in my house, and my sister said, "Hey, this is 'friend'! I invited her to come hang out. I hope that is alright!" The girl was super nice and sweet, but it just made me mad that my sister invited her over without asking. I decided to let it slide, but this girl has started coming over more frequently and my sister has made mention of potentially inviting others. They are never loud, but she has slept over about 2 times now because she drank too much and while I would never want anyone to drive intoxicated, I wish she and my sister would make plans so she could get back to her home at the end of the night.
My home is large (5 bed, 3 bath), so we don't feel too cramped with 4 additional people living with us, but it bothers me that my sister doesn't understand that inviting people over is an imposition. I don't know if I am being an asshole because 1) as I mention this girl is super nice, and 2) I want my sister to be making friends in her new city.