When I was younger, masturbation was an insane discovery to me. It felt better than anything I had ever felt. It all started with a pool jet, which was the most amazing feeling I'd ever felt. Of course, being that young when I found out about it, I had to be swimming with someone else to be safe, so my sister and I would often go swim together. She would always try and stay away from me as if she knew I was doing something naughty, but I don't think she really knew.
I never thought of my sis in a sexual way, so masturbation was just something I did on my own, but I had to share this discovery with someone else, and having only one sibling my age (other two we're a lot older) I felt it would be appropriate to share it with her. I told her to come into my room and she did.
'What do you want?' she asked me.
'Just wait, I'll show you!' I replied, ecstatically.
I pulled my pants down and started took a feather boa from my sisters room, and brushed it against my penis. It was the only way I knew how to stimulate myself. The soft, ticklish touch of the feather was just amazing. My penis just got a bit larger and I told her to look.
'Look! Isn't that cool?' I said.
'I don't get it, why is that happening?' she said in a confused tone.
'It's what happens when I tickle my penis!'
I continued until I had my exciting, yet dry orgasm. I didn't think of her watching me as an erotic thing, but as more or less an adventure, or a learning experience. I never saw her pussy or anything, but she sure as hell saw my penis numerous amounts of times.