Is this normal? Trigger alert . Siblings and childhood sexual exploration.

[Cupsandsaucers]

Hi, I've name changed for very obvious reasons.
I've been thinking about this a lot over the last few years even though it happened a very long time ago ( 40 years)
I don't want to do any thing or confront anyone about this, I'm really wondering if it's a normal thing to happen or not.
When I was about 9 , my brother was about 12 or 13, we started to get undressed and do sexual stuff, we never kissed or actually had full sex and I don't remember him having an orgasm. He was definitely the instigator but I seem to remember I was happy enough to go along with it.
I also found him and my sister doing similar stuff once but we never spoke about it then and never have since.
This probably went on for a couple of years and then stopped for no apparent reason that I can remember.
The rest of the time we were like normal brother and sister who didn't really get on.
I think it has left me with some issues but nothing that has especially impacted my life.
I think I'd just like to know if this is ' normal' between siblings or not really?
I'm not after any details or anything like that but would be helpful to know if it was just my family.
Thank you for reading.

I don’t think this is normal- this is sexual abuse. I am so sorry you went through this. It might be helpful to talk to a therapist to help you work out how you feel.
I was abused by a family member and have just started therapy- also happened nearly 40 years ago - I’m now suffering from depression after bottling it up for years. So sorry about your experience

I am sorry this happened to you. No it's not normal. Perhaps you can get some counseling to better understand what happened and how you feel about it.

I think young children doing a bit of you show me yours and I’ll show you mine probably occurs quite a bit. What you are describing sounds like more than that. I doubt people would talk about about if it is common though.

I have a similar age gap with my brother and definitely none of this happened. OP is there a way you can self refer for talking therapy? And discuss it with a professional.
It all sounds distressing :-(
The only thing that comes to mind that sometimes has made me think 🤔 Was that normal is my brother showing me under his pants once and me laughing and running, I was maybe 6? He was getting dressed after a shower

This definitely isn't normal and it's understandable that you feel uncomfortable about it now. Well done for posting on here about it as that's a big step. If you feel it would help, some counselling with someone who is well trained in this field could be really helpful.

Thank you , that's confirmed what I think I knew really.