How did you start fapping?

When I was 6 or so, I was done taking a bath, and got out naked, sorta, with a towel wrapped around me. I jumped onto my bed, and flipped on the TV and saw something about 2 girls. I remember watching something on TV and saw like a preteen looking chick, and the next thing I knew, I was rolling my plantain around the bed. The pressure between my penis and my bed was like . . . . . awkward, yet it felt good. So that's how I started fapping, LOL? <____< . . .

Pretty sure you can't get hard when you're 6. I thought it was impossible until you go into puberty?