Sorry, part of my post disappeared so am submitting the whole thing again.

When I was about three years old, I had a friend and neighbour, a boy of about seven (I think).

We were playmates and our parents often left us alone for a bit while his mum cooked dinner. We played lots of kiddy games but his favourite was 'mummy-daddy'. He would have me lie on the bed and pull my panty down while he would climb on top of me, pull out his little penis and put it into my pussy and jiggle it about. I didn't know what was so special about the game but was aware that we weren't supposed to talk about it to ANYONE. He was quite devious about it, ensuring that he pulled out of me and put our clothes in order if he heard anyone approaching. Sometimes it was quite a close call but we didn't ever get caught although we did this at least once every week for almost two years!

Also, if I ever came into his house at bath-time, he would insist that his mum should bathe him with the door open and that I should stand at the door so that I saw him naked. I wonder what his mum made of that but I used to be quite in turmoil, thinking this was wrong but scared to discuss it with my own parents, who thought I was just going off to play like an innocent child.

I too did some strange things at the time. In my own house, there used to be a pile of freshly washed clothes that were waiting to be ironed. On many occasions, when no one was watching, I would take off my panty and sit with my bare pussy on that heap, feeling all hot and squirmy down there. I remember how it excited me and made me feel good, a bit like masturbating does now. 

My family moved away from that house when I was five and I don't really think of all this often now. Thankfully, it didn't fuck me up or have far-reaching consequences. But it's weird to imagine that I was sexually active at the age of three! It really amazes me now to realise that we had that sort of urge and experience at such a young age.