8. Remember he might not be sexually active. Just because he’s masturbating does not mean that your son is, or will be, sexually active any time soon. It’s a great idea to talk about safe sex now, and if your son is not having sex then it’s a great time to support him and explain that there is no rush. Bottom line, be there for him no matter what he chooses to do sexually, but offer advice and information so that he can make smart choices when he is ready.