My brother's girlfriend is behaving very inappropriately around me. It's becoming increasingly uncomfortable, and I'm not sure what to do. Ever since they started dating a few months ago, she has been relentlessly flirting with me and making suggestive comments. Whenever we're all together, she insists on sitting next to me or touching me in an overly familiar manner. She often makes lewd jokes and looks at me suggestively when my brother isn't paying attention. It is obvious that she's trying to make me feel uncomfortable and I don't know how to tell her to stop.
Unfortunately, it can be difficult to manage this type of inappropriate behavior from your brother's girlfriend. It's understandable why you feel the need to confront her, but it's important to proceed with caution. In this situation, the best thing to do is to talk with your brother first. It's possible that he may not be aware of the extent of her behavior, and opening up to him about it will give him the opportunity to intervene and set boundaries for her.
If you feel more comfortable speaking with her directly, then you should do so, but make sure you approach the conversation with caution. Speak to her in a respectful manner and try to maintain a calm and professional tone. Explain to her that her actions are making you feel uncomfortable, and ask her to stop. Make sure you emphasize that these types of behaviors are unacceptable and won't be tolerated.
Also, if you feel like your brother and his girlfriend are engaging in other inappropriate activities, such as engaging in physical contact while in public or engaging in inappropriate conversations in private, then it's important to mention that as well. It's possible that your brother's girlfriend may be trying to push the boundaries of what is appropriate, and your brother may not be aware of it. By enlightening him on the situation, he'll be able to take the necessary steps to address her behavior.
If the problem persists after having a conversation with your brother or his girlfriend, then it may be time to take further action. Consider involving other family members or speaking to an outside professional to get further advice. With time and patience, you can resolve this situation and protect yourself from further discomfort and distress.