The boys are growing ever more intelligent.  They are reading fairly well.  I told them that books will tell them most of the things that other people won't take the time to explain.  At the moment, they are quite taken with my copy of "Human Body" (Doring Kindersley Limited, London) with its many illustrations.

I was sitting in bed reading my 4th book in "The Horus Heresy", pulpy science fantasy based on the Warhammer 40K table top game, and they would periodically ask questions.

"Look at those!" Remy said as he pointed at an illustration of a woman's body.

I glanced over.  "Yes, those are breasts."

"I want to see breasts!"

"Well, yeah."