Birds and Bees

We had Juno on a few weeks ago while Nick was busy playing. He saw the pregnant main character and asked if she was a teenager. Then he asked how a teenager could get pregnant (I think I told him a long time ago that babies are made when a mommy/daddy love each other, so a teenager getting pregnant just wasn't registering for him). I told him the same way a mommy/daddy can. Then he asked how that happens. Didn't we go over this when you were three?! Chris somehow kept his attention on the tv the entire time this conversation was taking place. I stumbled my way through enough of an explanation for Nick to reply "oh" and then go right on playing. Jeesh.