"What's sex?" Carson asks out of the blue as the family sits down to dinner one night. You nearly choke on your water as you ask your eight year old, "Where did you hear that word?" "At school. Some of my friends were talking about it. What is it?" Carson asks again. You and Harry exchange glances before you give him a look to say "this is all you." Harry takes a deep breath, buying a few seconds' time before answering, "Well, it's something that mummy's and daddy's do because they are in love and want to have a baby," Harry tries to leave it as simple as possible. "But what is it?" Carson presses. "Um, it's...it's kind of when the dad gives the mum a seed and then the mum grows the seed into a baby." "Why does he give her a seed?" your son inquires. "Because he loves her so much," Harry replies. "My friend said that his older sister has sex with lots of boys. So are they all giving her their seed?" Carson asks. Harry closes his eyes for a second, trying to figure out how to get himself out of the hole he's dug himself into. "Yeah, sorta," is the best answer he can come up with, which leads to you showing your disapproval by kicking him under the table.