One day when I was younger, my mom was in the bathroom and I could hear the water running so I figured she was taking a shower. I needed to be in there for a minute, and I didn't see the big deal of just walking in because she was behind a curtain. I was wrong, because when I opened the door, she was naked in the tub, but she was also squatting down spraying the water between her legs with her mouth open. It startled her, and she yelled at me to close the door. After that, I ran back to my room and started crying, not just because I got yelled at, but also what I saw her doing.
A few minutes later, she knocked on my door and came in and wanted to talk to me about what I saw. I told her I knew what she was doing and that I always thought it was wrong, but she told me it wasn't and is a perfectly normal thing to do. She talked for a couple more minutes and then left, but when she was gone I wanted to try it out myself because of what she told me. I locked my door and took off all my clothes, got back in bed and spread my legs apart. I had never masturbated before so it was all new to me. As soon as I started rubbing my little clit, a shock went through my body that made me gasp and go stiff. After I relaxed a little, I fondled and tickled my lips, making me wiggle around in bed and moan. I kept going, and pretty soon I could feel something building up. It felt so good, I didn't stop and a few seconds later I had my first orgasm, grunting and shaking on the bed. I couldn't believe what it felt like, and after I caught my breath I did it again.
When I was done, I got dressed and went downstairs and saw my mom in the kitchen. She didn't say anything, but she just looked over at me and smiled. I don't know if she heard me or knew what I was doing, but we never discussed it after. I assume she did.