The first reaction would probably be shock. Just frozen in place not knowing what to do.
Embarrassment for sure. Blushing like crazy and trying to cover up as quickly as possible. Maybe stuttering out an apology or some kind of excuse. For example, if it was in a shared living space and you were caught by a roommate, you might say something like 'I thought you were out'.
For me, it's the sudden realization that someone else has seen you in a state that you never intended them to. You might feel ashamed, especially if it's in front of someone you respect or don't know very well. Like if it was in front of a new acquaintance, it would be so awkward and you'd worry about what they think of you. Also, the shock of the moment can be really embarrassing. You're just not prepared for someone to barge in and see you like that.
Often, there can be acceptance. If the people around are open - minded, like in a group of friends who support individuality, they might just laugh it off and even compliment the person's style. They may see it as a form of self - expression and creativity. Well, think about it. In the fashion world, there are so many designers who play with gender - bending styles. When someone is caught crossdressing in such a positive and accepting group, it can be a really cool moment. It can also start interesting conversations about fashion and identity.
Some people might try to play it off as if they were doing something else entirely. They could pretend they were just scratching an itch or adjusting their clothes. But the obvious signs usually give it away. There's also the long - term effect on their self - esteem and how they interact with the person who caught them in the future.
I don't have such a personal story as it's a rather embarrassing situation that I haven't experienced. But I can imagine someone might be caught in that situation while doing laundry and their little sister or brother accidentally opened the door at the wrong time.
I don't have such a personal story myself. But I can imagine it would be extremely embarrassing. Maybe someone was caught by a family member when they were trying on new panties and the door accidentally opened.
One possible reaction is to freeze in place, not knowing what to do or say immediately. She may also feel a sense of guilt, even though masturbation is normal, because of the social stigma that sometimes surrounds it. Additionally, she might get defensive if the person who caught her has a negative reaction. For example, if it was a conservative family member, she might feel the need to justify her actions even though she doesn't really need to.
Most of the time, there's extreme embarrassment. The person caught will likely turn red and try to cover up quickly.
One possible reason could be curiosity. He might be curious about how it feels to wear something different. Another reason could be a form of self - expression in a non - traditional way. Maybe he saw it as just a piece of clothing without the gender - specific connotations usually attached.
The sister could first try to stay calm and not overreact. She might want to give her brother some privacy immediately and then later have a serious but gentle conversation about appropriate behavior in the house.
Just tell the truth. Say 'I'm sorry, I didn't realize it was yours. It must have gotten mixed up somehow.' Simple and straightforward.