I disovered masturbating at a young age. I did it a lot, almost twice a day. I would masturbate in my room or whenever I could. I was about to hit the Jackpot one day right when my sister walked in. I didn't know what to think. I quickly threw the blanket over myself and tried to act like nothing had happened. Of course that didn't work, she wasn't born yesterday. So instead of trying to hide it I pulled the blanket back off and showed her what I was doing and why.
She was older than me but had zero experience with anything, at least that's what it looked like. I asked her if she knew how to masturbate and if she wanted to join me. She said she didn't know how but she wanted to learn. She sat down next to me and I showed her. After seeing what was between her thighs I was ready to go again. I had a great time that day. Our experimenting lasted for hours since we were home alone. We masturbate all of the time now and enjoy every minute of it. Our parents travel often so we have loads of alone time together.