Sarah Jessica Parker has said her son James Wilkie is starting to ask interesting questions as he’s getting older.

James, Sarah’s son with husband Matthew Broderick, turned four last October and Sarah told People recently: “He goes to school with a lot of kids who have different families from his, so he’ll be like, “Jen has two mommas” or “Charlie has two poppas.” And so we’ve been talking about what it is to be gay; I want him to understand it in terms that aren’t overwhelming to him. But he asks about everything. Death is a very big conversation piece.”

“Actually, the things that are far more complicated for me to answer are any kind of science questions. He has a really keen interest in science. I have basic fundamental knowledge – but I don’t know what he’s going to do about homework! I’m glad my husband’s smart about that sort of thing.”