re the mating process
ds then saw a full-page pic of a condom (in a free mag. On the TUBE) and asked what it was. Twenty times. Finally I said I'd tell him later, and he did remind me, and I did tell him the full monty. He's just 6.
So he knows it's how grown-ups who love each other make babies, but also that you don't always want to make a baby, sometimes you just do it because it's nice. And that the man can put a condom on to stop his seed getting to the egg.
He laughed but in general took it all calmly on board.
Probably not right for everyone, but he's quite thoughtful, and was moving it forward, so I didn't feel I could truthfully answer without the detail.