Speaking of being a mama bear, have you heard of the "Mama Bear Apologetics" books? There's a general one about "Empowering Your Kids to Challenge Cultural Lies," but my wife is in a Bible study group with other homeschool moms, and they're reading through this other one, subtitled: "a Guide to Sexuality: Empowering Your Kids to Understand and Live Out God’s Design".
My wife loves it (except for some truly nasty stuff that the auther has to bring to the reader's attention), and often reads excerpts of it out loud to me. It's here on Amazon, if you're interested:
https://a.co/d/214nNGg