Our 1st was 9 days over and kicked the living s**t out of my wife from about 4 months.
He's 7 and a half now and has all of a sudden has become aware of the fairer sex. He's slowly starting to realise that although he couldn't be bothered to evacuate the wifes punani a few years back, he'll more than likely be spending the majority of his life trying to get close to 1 again!
Not the wifes obviously, that's just weird.
On the advice side, you'll know what to do when it happens. Enjoy it.