Re: 'The talk' for uninterested older kids?
I think sitting down with him with a book is the way to go. Yes, he will be uncomfortable, but the longer you wait, the worse it will get. The less you talk to him about it, the more it will reinforce his idea that it is too private a subject to discuss. It's ok to acknowledge his discomfort.
Melissa-Wife, mother to DS 4/02 and DD 4/07, DS 7/08
ISO: my lost shaker of salt