Act as normal as possible around her. Don't give her any strange looks or make any veiled references to what you saw. Treat her just like you did before, so she doesn't feel like she's being constantly judged or reminded of the incident. For example, continue with your normal conversations and activities together.
You could also try to do something nice for her, like getting her favorite snack or inviting her to do something she enjoys. This can help shift the focus from the embarrassing incident and show her that you still care about her as a normal sister - brother relationship should be, without any awkwardness lingering from that moment.
Just pretend like it didn't happen. By not acknowledging it, you're giving her the chance to move on without feeling constantly self - conscious around you.
This is a very sensitive situation. First, it's important to respect her privacy and not shame her. You could try to have a calm and non - judgmental conversation with her at an appropriate time, just to let her know that such activities are private. For example, you can say 'I accidentally saw something private of yours, and I hope you can be more careful about privacy in the future'.
This is a very embarrassing situation. First, you should try to stay calm. Don't panic and make the situation worse. Then, you should have an honest conversation with her at an appropriate time, depending on her age. If she's young, you can simply explain that it's a private matter and she should forget about it. But if she's older, you might need to have a more in - depth talk about privacy and appropriate behavior.
First, it's important to respect her privacy. Try to act as if you didn't see anything. Masturbation is a normal part of human sexual health. If you feel it's necessary to talk about it, approach the conversation with kindness and non - judgment. For example, you could say that you understand it's a private matter and that you'll keep it to yourself.
Give her a big hug and tell her you're sorry. Do something nice for her, like make her a cup of tea or draw her a picture.
Tell her you are sorry and that it was a childish act. Promise her it won't happen again.
Just act like you didn't see anything at that moment. Pretend it was a normal situation and don't give her any strange looks. This can avoid her feeling extremely embarrassed right away.
Tell her that there are no limits to her imagination when making stories. Encourage her to combine different things she has seen or experienced, like the animals in the zoo and the characters in fairy tales. And praise her efforts and the unique parts of her stories every time.
Facing your friend will be difficult. But it's important to approach him. Start by apologizing for the discomfort this may have caused his sister. Explain that it was a private moment that got out of hand. Try to show that you are taking responsibility for your actions and that you value your friendship enough to not let this incident ruin it. You might also ask for his understanding and forgiveness, but be prepared for any reaction he may have.
Be honest with your girlfriend. Tell her exactly what happened and how sorry you are for putting her in such an awkward position with her mother. Listen to her reaction and be prepared for her to be angry or disappointed. Assure her that you will take steps to ensure this kind of situation never occurs again.