Look, we're all big enough and bold enough now to know that babies don't come from the stork or via a delivery to the cabbage patch. It's also a positive development that we're all so much more open with children nowadays about sex education. But we're still not ready for this. How A Baby Is Made, originally published in 1975, has become a viral sensation this week after reappearing online.
Penned and illustrated by Danish writer and psychotherapist Per Holm Knudsen, the book graphically illustrates the whole scenario - from sex right through to pregnancy and childbirth.
It's something very special... but we're not sure if that's a good thing.