K., You have to stick to your guns! Don't let your child tell you what is best for him. CLEARLY, this nephew is going down a destructive path. I'm afraid that since your son has spent so much time with him already, he may not take it very well, when you cut this nephew out of the picture. But, it is your responsibility to raise your child the best way you know how. If that means limiting his time with a destructive path, then do it. In fact, if this newphew weren't related, would you allow this relationship to continue anyway???? What makes you think that since he's related it makes any difference? In fact, it might be even a worse thing, as he is starting in Jr. high, and bringing all kinds of new ideas into your home that you wouldn't approve of. As to disciplining the nephew in your home, it won't cure him of his bad behavior that has obviously been okay for him for so long. It won't change him much, BUT it will change what happens in YOUR house. If he won't behave in accoradance to your rules in your house, then he should NOT be there. Please, please, keep your child safe from a destructive influence. Pre-teens, and teens, have enough to deal with already about themselves, and figuring out what's really important in life. They don't need extra trouble. I wish you the best, and I know that it's got to be hard. But, I'm sending up a prayer for you to know what is the best thing to do, and a plan to follow it. BE STRONG. You are the mom, you are the one with the wisdom with your husband to bring about the best opportunites for your kids. Good Luck.
J.