If he is asking, he is ready to know. Just explain that sometimes when males wake up,they have a morning hardon and it may because they have to pee. You can also get some really good books that will help you explain ALL that he will be going through. 9 is NOT too young to be talking about his body, puberty,etc. Don't make a big deal out of it, let him know that it is NORMAL and OK. He will be having a lot of questions, don't wait for the school Health class to teach him, you teach him. Keep up open and honest communication, be truthful but age and developmentally appropriate.
at 11:30 PM on Nov. 10, 2009