My kids do want cold hard facts and almost every instance, I do give it to them straight. I am like you, Erin, in that approach. (Have also learned a lot from you in that regard

You know what my biggest fear is to telling them the whole story? Them sharing it with other kids, especially other kids that I take care of, and ticking off other parents. There is only one thing my kids like better than learning cool stuff and that is sharing it with anyone who will listen.
I have told this story here before but when I was pregnant with Savana, my neighbor was in his back yard enjoying a beer and a book and Savana yelled off our deck, "My mom is having a baby and it's going to come out of her VAGINA and she's going to feed it milk from her BOOBIES!"
I gave a feeble wave and said, "We've been studying mammals", before I scurried us both back into the house.