DD has read the one for girls. It was very good. Look into it for him. If it is as good as the girl's one was, it should be great!
BTW, I saw Kevin Lehman on the "Early Show" today and he was discussing his new book, The Chicken's Guide to Talking Turkey.
Talking to your kids about sex was the topic this a.m.
There website might have more.
Anyway, he surprised me when he said father's should discuss with DDs and mom's with sons. I don't think he means the same sex shouldn't discuss but I am sure it would make a big imact on the opposite sex speaking.