What's the most embarrassing question you ever asked your parents as a kid?

When I was 9 or 10, I asked my uncle what an orgasm was. He quickly told me to ask my mother when she got home from work. The three of us are in the living room together when suddenly he tells me, "Jessica, isn't there something you wanted to ask your mother?" to which I quickly reply, "Oh yeah! Mommy, what's an orgasm?" I don't remember her response. I only remember a long, thick awkward moment of silence before my uncle exploded in an uproar of uncontrollable laughter while he watched my mother squirm as she pondered how to answer my question.