A childhood belief about rude bits

This is not mine itz my cousins.

When my cousin was about three and was just starting to realise that he had those bits he had his friend over (which was a girl) and they were both playing in the pool naked ( as three year olds do.)And he looked at his his friend very amazed and quickly ran to his mum saying.
'Mum, Mum Sophie cut off her wee-wee! She cut it off look! I could never do that!'
And of course we all stormed with laughter and he just stood there confused because he thought that we should all be really worried and we should rush her to the hospital.