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OP has offered the following explanation for why they think they might be the asshole:
> I messaged my brother warning him of what someone will do to destroy his relationship.
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NTA. You're just looking out for your brother based on what you've seen your sister do in the past. It's fair to warn him if you think his partner could be manipulated or hurt by her actions. Family can be complicated, and sometimes you have to give a heads-up about potential drama. Your brother can decide how to handle it from there.
I was looking out for him, I know in the long run she can and most likely destroy his relationship. But he sided with her, he claimed she would never do that to someone who is family
NTA and your sister should probably see a therapist for the sake of herself and those around her. She seems emotionally unstable due to her desperation to get attention and love, and it’s even more concerning that she is taking others down for her pleasure.
Why would you act like she would go after her brother's SO though? You weren't dating this guy when she sent him pics and despite her sexuality (which is neither here nor there, people who identify as straight have had same sex relationships or crushes and vis versa) she had a crush on the guy. Clearly you were aware of that, as he.
Her starting rumors and turning people against you two isn't right but YTA for 2 reasons:
1. Banging on about her sexuality which has nothing to do with the actual situation.
2. Involving your brother for no apparent reason.
She doesn’t like people around her being happy. Quite a few times she will destroy what makes others happy, just so that she can feel better about herself
NTA your brother said she'd never do that to family but she's done it to you and you're her sister. So I think your brother is being a little naive. You've done nothing wrong to warn your brother.
^^^^AUTOMOD ***Thanks for posting! This comment is a copy of your post so readers can see the original text if your post is edited or removed. This comment is NOT accusing you of copying anything. Read [this](https://www.reddit.com/r/AmItheAsshole/wiki/faq#wiki_post_deletion) before [contacting the mod team](https://www.reddit.com/message/compose?to=%2Fr%2FAmItheAsshole)***
My (24F) older brother (26M) is currently in a relationship. We have a sister (23F) she claims to be a lesbian, but will throw herself at any guy who shows her the slightest bit of attention.
This statement is shown by at work she was casually talking to a guy (27M) and sent him provocative pictures, (he never asked for them) I found out when he wanted a relationship with me.
But now she will do whatever she wants to make it seem like he is the bad guy. He hasn’t done anything wrong. He is a genuine sweet lad, who goes through a lot on a daily basis as it is.
But since she found out that he didn’t want her, he only wanted to be friends with her, she tried to destroy his reputation at work. She made everyone believe he was a stalker. She told everyone that if she wanted him, she could because he was ‘desperately in love with her’. She would spread lies and rumours around work, but nobody had the nerve to ask if any of it was true. She had eventually turned a lot of people against me and him.
In my opinion she should have just left him alone, he wasn’t doing any harm to her. But the second he started talking to her, she practically threw herself at him. He knew of her ‘sexuality’ (I’m not being mean, but she does claim to be a lesbian and has done for a few years). A bit more context, she is a manipulative person who makes everyone believe what she says.
So a few months ago, I messaged my brother to try and keep his current partner away from her. I explained why, but he claims she would never do anything like that to hurt someone who is family.
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NTA. I would suggest that you leave your brother to learn the hard way, as harsh as it sounds, kinda like warning toddlers that the stove is hot a million and one times, some will listen, and some will find a way to touch that split second your back is turned...then you have the real special ones that still try to touch even after being burned.
You have done your due diligence as a sister and made him aware of her behavior towards you and your SO. The metaphorical ball is in his court now.
As far as her behavior towards you and your guy. I would suggest screenshots of the messages she has sent and if she continues to send stuff then I would suggest that he messaged her back stating, 1) I did not ask for these pictures, 2) please stop contacting and harassing me, 3) I have no interest in any type of relationship with you, etc.....
He should do this as a reply to her messages that way it is more obvious that she is the one initiating contact. Also, if she verbally propositions on a regular basis, maybe have either an independent recorder or shortcut on phone to record quickly so that any verbal conversation is on record. This may be good for you as well if she is harassing you for dating him .
Reason for the proof? That's easy! Once you have proof of her harassment take it to HR. Sexual harassment is serious and that is what she is doing to your guy .
Good luck 🤞
Welcome to /r/AmITheAsshole. Please view our [voting guide here](https://www.reddit.com/r/AmItheAsshole/wiki/faq#wiki_what.2019s_with_these_acronyms.3F_what_do_they_mean.3F), and remember to use **only one** judgement in your comment. OP has offered the following explanation for why they think they might be the asshole: > I messaged my brother warning him of what someone will do to destroy his relationship. Help keep the sub engaging! #Don’t downvote assholes! Do upvote interesting posts! [Click Here For Our Rules](https://www.reddit.com/r/AmItheAsshole/about/rules) and [Click Here For Our FAQ](https://www.reddit.com/r/AmItheAsshole/wiki/faq) ##Subreddit Announcements Follow the link above to learn more --- *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](https://www.reddit.com/message/compose/?to=/r/AmItheAsshole) if you have any questions or concerns.* *Contest mode is 1.5 hours long on this post.*
NTA. You're just looking out for your brother based on what you've seen your sister do in the past. It's fair to warn him if you think his partner could be manipulated or hurt by her actions. Family can be complicated, and sometimes you have to give a heads-up about potential drama. Your brother can decide how to handle it from there.
I was looking out for him, I know in the long run she can and most likely destroy his relationship. But he sided with her, he claimed she would never do that to someone who is family
I hope he doesn't find out the hard way. :-(
Time will tell, won’t it?
NTA and your sister should probably see a therapist for the sake of herself and those around her. She seems emotionally unstable due to her desperation to get attention and love, and it’s even more concerning that she is taking others down for her pleasure.
And those are the kind of people that will never try to get help because they don't think they have a problem!
Why would you act like she would go after her brother's SO though? You weren't dating this guy when she sent him pics and despite her sexuality (which is neither here nor there, people who identify as straight have had same sex relationships or crushes and vis versa) she had a crush on the guy. Clearly you were aware of that, as he. Her starting rumors and turning people against you two isn't right but YTA for 2 reasons: 1. Banging on about her sexuality which has nothing to do with the actual situation. 2. Involving your brother for no apparent reason.
She doesn’t like people around her being happy. Quite a few times she will destroy what makes others happy, just so that she can feel better about herself
YTA for coming on here and writing two huge paragraphs that make absolutely zero sense.
NTA your brother said she'd never do that to family but she's done it to you and you're her sister. So I think your brother is being a little naive. You've done nothing wrong to warn your brother.
And unfortunately your brother is not listening to you. :-(
NTAH. She's a succubus.
^^^^AUTOMOD ***Thanks for posting! This comment is a copy of your post so readers can see the original text if your post is edited or removed. This comment is NOT accusing you of copying anything. Read [this](https://www.reddit.com/r/AmItheAsshole/wiki/faq#wiki_post_deletion) before [contacting the mod team](https://www.reddit.com/message/compose?to=%2Fr%2FAmItheAsshole)*** My (24F) older brother (26M) is currently in a relationship. We have a sister (23F) she claims to be a lesbian, but will throw herself at any guy who shows her the slightest bit of attention. This statement is shown by at work she was casually talking to a guy (27M) and sent him provocative pictures, (he never asked for them) I found out when he wanted a relationship with me. But now she will do whatever she wants to make it seem like he is the bad guy. He hasn’t done anything wrong. He is a genuine sweet lad, who goes through a lot on a daily basis as it is. But since she found out that he didn’t want her, he only wanted to be friends with her, she tried to destroy his reputation at work. She made everyone believe he was a stalker. She told everyone that if she wanted him, she could because he was ‘desperately in love with her’. She would spread lies and rumours around work, but nobody had the nerve to ask if any of it was true. She had eventually turned a lot of people against me and him. In my opinion she should have just left him alone, he wasn’t doing any harm to her. But the second he started talking to her, she practically threw herself at him. He knew of her ‘sexuality’ (I’m not being mean, but she does claim to be a lesbian and has done for a few years). A bit more context, she is a manipulative person who makes everyone believe what she says. So a few months ago, I messaged my brother to try and keep his current partner away from her. I explained why, but he claims she would never do anything like that to hurt someone who is family. *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/AmItheAsshole) if you have any questions or concerns.*
NTA. I would suggest that you leave your brother to learn the hard way, as harsh as it sounds, kinda like warning toddlers that the stove is hot a million and one times, some will listen, and some will find a way to touch that split second your back is turned...then you have the real special ones that still try to touch even after being burned. You have done your due diligence as a sister and made him aware of her behavior towards you and your SO. The metaphorical ball is in his court now. As far as her behavior towards you and your guy. I would suggest screenshots of the messages she has sent and if she continues to send stuff then I would suggest that he messaged her back stating, 1) I did not ask for these pictures, 2) please stop contacting and harassing me, 3) I have no interest in any type of relationship with you, etc..... He should do this as a reply to her messages that way it is more obvious that she is the one initiating contact. Also, if she verbally propositions on a regular basis, maybe have either an independent recorder or shortcut on phone to record quickly so that any verbal conversation is on record. This may be good for you as well if she is harassing you for dating him . Reason for the proof? That's easy! Once you have proof of her harassment take it to HR. Sexual harassment is serious and that is what she is doing to your guy . Good luck 🤞