Seriously, there are a million of these things out already, and each and every one of these theories are either identical or just too similar to post. If you think Pein is related to Naruto by blood in somehow, then post that here.
I will be moving any and all threads that consist of anything largely having to do with Pein being related to Naruto here. I'd appreciate it if some of you would save me the time of having to do all that anyway. A futile request, I'm sure, but it doesn't hurt to make it anyway.