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The original was posted on /r/AmItheAsshole by /u/PieClassic1245 on 2023-07-28 10:49:06.

I (20F) have an identical twin sister (“Emma”). We live together in an apartment while away from home for college. We’ve always been very similar, not just in appearance, but also in the things we enjoy (as stereotypical with twins I guess). Except for when it comes to relationships.

I’m not interested in relationships at all, not emotional nor physical. Emma is the complete opposite. Ever since we started living here, she’s been bringing another random guy or girl (or both) home like every other night. It makes me extremely uncomfortable, but since it’s her own life I don’t think I really have any right to judge.

Problem is that it’s really beginning to affect my own life. Not only do I have to listen to her going at it every time (we have *very* thin walls). But since we look practically the same and even our names are similar (if her name is “Emma”, my name would be “Emilia”), I’m getting attention intended for her as well. She has a reputation with how easy she is to sleep with, and people are approaching me thinking I’m her.

My messages on social media are being filled with all kinds of obscene language and nude photos. When I reply saying I’m going to report them, they get confused because of the “good time we had last night”. Any time I meet someone new, they only seem to be talking to me because they think I’m my sister and want to have some nighttime fun. As a result, I don’t have any friends.

I got really fed up with it yesterday and told my sister the way she acts is ruining my life. I told her she either needs to change her lifestyle, somehow make sure whoever she sleeps with won’t bother me and make it clear to everyone that we’re not the same.

In response, she told me I need to mind my own business, that I shouldn’t be such a prude and that I could probably use, in her words, “some dicking” myself. It kind of escalated from there resulting me in calling her a sl*t (which is definitely an AH thing to say, but I lost my cool).

Anyway, AITA for demanding my sister to change her way of living, or otherwise make sure her interaction with people doesn’t affect me?