At least some of your daughter’s behavior is a normal part of discovering who she is and what the various parts of her body—including her genitals—do (we’ll get back to that below). It’s also normal for her to ask a lot of questions. As adults, we have a pretty good grasp of the role genitals play in sex, whether it’s for pleasure or reproduction. Kids your daughter’s age don’t. Yet.
Unfortunately, we live in a world where sex seems to be everywhere and children are exposed to sexual images and ideas at much younger ages than we were. That means having “the talk” a lot earlier than we’d planned to. It’s important that you answer your daughter’s questions in a relaxed way, giving her answers that address her concerns but aren’t so detailed that they overwhelm her.