For better or for worse, children are always listening.
Kids pick up on the vocabulary of the adults around them, absorbing four letter words and various anatomical terms.
Someone on Reddit asked, "What's the most hilarious/inappropriate thing you've ever seen a child do?"
It turns out that kids are as curious about sex as adults.
So my boyfriend was turning 18 or something, and I decided it would be a totally brilliant idea to have a pizza party at Pizza Hut for him. I invited a few people, and my mom and eight-year-old brother were there. We get through dinner. We stand up and go to pay the bill. My brother for some reason loudly announces to the entire dining area, "Hey, I'll give you a blowjob for your birthday!" F*cking. Crickets -- for about five seconds anyway.