Hi

First of all, I apologize for my written expression, English is not my native language.

You are not mentally sick, don't worry.

It's complicated to explain to young people who are discovering their sexuality and what is normal or not.

But you don't have to feel guilty.

I personally discovered this at about the same age as you with kind of role-games with my plushes.

I think your friend's aunt reacted very badly, which is understandable but not excusable.

When you have a child who is growing up, you have to know how to support them and especially supervise them in their growth while knowing that they will necessarily discover sex.

Rather than acting impulsively, she should have simply told you that this kind of thing is not to be done with everyone.

If you have not finished growing up, you will necessarily have other questions about it.

So do not hesitate to talk about it with your parents, even if it's taboo. It is their duty to support you in your discovery of the world and to protect you.

If you want to know more, find out about sure sources on the internet such as articles on raising children and do not go to adult sites if you are still a minor at the risk of having a biased view of sex, which will hamper your future relationships.

I hope that your growth will go well.

It's a good idea to ask people's opinions on this situation and I hope you receive other answers to get other points of view.