Ds1 was 8 a couple of weeks ago and has known for some time where babies come from but had never asked me how the baby got there in the first place. Then he did...
So I explained, while he giggled and pulled faces and looked horrified.
Last night, over dinner, he said to dh (who I had completely forgotten to tell about our birds and bees conversation)...
"Dad? When the squirm came out of your willy and went into Mum, could you feel it?"