I was 7 when this happened. Dad had left us and I was living with my mother only. It was a liberal household and I had seen her naked on a regular basis. I have had the talk about the flowers and bees already. One day I heard the older boys talking about m*********** I didn’t want to ask what it is and asked my mom. She explained to me it was basically s** with yourself but I didn’t understand so I asked for clarifications. She explained to me it was about mimicking s** so one could feel pleasure. As a boy I more or less understood the male part but had a misconception about the female m***********. I asked if it was about something going in and out of the v***** and she laughed and said it’s one way to do it. I nodded as if understand but didn’t actually. A few hours later I asked what does she mean by one way to do it and she then tried to explain there is something called c*******. Again, I had seen her naked but hadn’t seen this. I just didn’t understand. She got a little mad and lifted her skirt and lowered her knickers and had me feel her v***** so I can understand. I felt very ashamed and a little excited. I hesitated for a while and touched it. I couldn’t feel and understand it at first but she guided me to the c*******. I think it wasn’t s***** at first but once I touched her c******* she a bit became different. I understood the idea and removed my hand. Later that day she was naked at home (it wasn’t unusual) and my curiosity prevailed so without asking I touched her v***** again. She jumped at first but let me explore. She obviously liked it so I kept going. At some point she grabbed my b*** and started massaging it. I kept touching and she at some point (I didn’t understood it then) I think orgasmed. She hugged me a lot and told me I shouldn’t tell anyone about this. It didn’t happen again and she acted guilty (as she should!).