my first cfnm experience was with my girls cousins. I was 5 or 6 years old, my cousins were much older, they were about 16 years old.
My mother was very close to my aunt, and we lived on the same block. My parents and uncles both worked outside the home, so they thought it was a good idea for all the kids to stay together (me, 2 girls cousins and a boy cousin who was 2 years older than me). it was cheaper than paying a babysitter!
One day I went to take a shower. my girls cousins soon entered the bathroom and said: today we are going to see if you are showering correctly, if you are cleaning yourself well.
I said “I didn't need to, I've been taking a bath alone for 2 years”. But they said something like: "we are responsible for you and our brother in the afternoons. We already approved our brother's bath but not yours yet ". They were an authority to me, almost like aunts, they always told me what I could and couldn't do.
I did more than usual, because I was being evaluated. My cousins watched. How happy they were that day, always smiling...
I finished the shower, got dressed. One of them told me, laughing: I give your bath a 7, it wasn't very good. You didn't wash behind the ears and you should have washed better the dick and balls.
the other cousin said, laughing too: I give a 6. I agree, you must wash them very well. you won't get a girlfriend if you don't start washing them better.
At the time I was confused, I didn't understand anything. Years later I understood that they were just having fun, playing a prank. And they never watched their brother taking a shower...
After this day i took a shower only at night, because at night they were no longer at my house (today i think i missed opportunities!).