If parents' understanding of sexual knowledge is not scientific and objective enough, or there is no good way to educate their children. Then, don't try it easily, lest it cause disgust and lead to wrong guidance.

In a relaxed and comfortable environment, share parents' adolescent memories together (personal experience is more acceptable) and guide children to actively share their findings. Always pay attention to the boy's psychological reaction. When the boys become silent, change the happy topic first and then bring it back. Mom can avoid it for a while, so that boys won't feel embarrassed about the following topics. Dad can talk about the specific details of his adolescent physical changes, how to treat nocturnal emission correctly, watch porn and masturbate. After talking about the man, the mother can go out and talk about her physical and psychological changes in adolescence, where and how the children came from. Dad can say a few words from time to time to ease the atmosphere. Let the boy establish a relationship of trust and confidentiality with his father.

Note that parents' secretive and ambiguous explanations will only make the boy more curious, and he will find the answer himself, which may lead to bad habits.