“Testosterone and Puberty” is a Small Topic from the book I’m a Boy, Hormones! (Ages 11+)
Your son is showing signs that his body is changing as he matures through puberty. He looks different and he is eager to share his opinions.
This Small Topic is written for boys 11 years and up. It describes the early signs of puberty. He has likely noticed some of them like a change in body odor, a change in his skin, and a change in his emotions.
This Small Topic begins the preparation for his first ejaculation.
Here are a few pages from this Small Topic