Haha, that's cool :) Yeah, wish I had had friends like that too. It's funny the father has to ask those questions.
Funnily enough, I've only just seen my best friend (since primary school) fully naked a short time ago - after knowing each other for 20 years and staying at each others places all the time as kids/teenagers/adults! :P Mind you, certainly never stopped me being naked, he's probably sick of my ass! Lol.