How can I keep my 6 year old brother from knowing about sexuality when he already knows about my period?

Okay, so your period and sexuality are totally different things. Your period is about your body changing and becoming able to have babies way later, and sexuality is more about feelings and relationships. Your brother knowing about your period doesn't mean he automatically knows about everything else.

What to do about it

You can keep talking about your period super chill and normal, like it's just a regular body thing, because it is! Just don't connect it to other stuff you don't want him to know yet. If he asks about your period, you can say things like:

• "It's just when my body cleans itself out once a month."
• "Girls get it when they're growing up, it's just how our bodies work."

If he asks about other stuff, you can always say "that's something you'll learn about when you're older, just like I did!" or tell him to ask a grown-up. Your parents or guardians are probably already thinking about what they want to tell him and when, so you can always check in with them too. It's totally okay to just keep your period talk simple and focused on how your body is changing, and not get into anything else.

It's super common for younger siblings to get curious when they see older ones going through changes, so you're not alone! It's actually a good thing that your brother sees you being open and normal about your period, because it helps him understand that it's nothing to be weird about.