FRom people who've actually had children!
I am loving how much of a laugh i have with my teenager at the moment. We have exactly the same sense of humour-[is that because i raised him to find the same things funny?] and we just ROAR laughing at daft stuff.
The other thing is catching sight of them and thinking 'bloody hell you're a man' and feeling proud because they are so handsome and lovely
when they are tiny, it's cuddles with them on your shoulder and the side of their head resting on your cheek
days out at farms and parks and stuff watching them discover the world
and you?