I am a little outside the target range for Rookie, but I haven't let that stop me. You may have heard tell that they recently had Jon Hamm stop by for their "Ask a Man" segment, but I wanted to point you to this amazing fourth grade report* on puberty because in addition to illuminating the difference in response one can get from different sources on puberty, it also has the most amazing definition of nocturnal emission I have ever seen, and that's actually not a sentence I had ever envisioned typing, but there you go. The world is an amazing place.
*Note the tags on the post.