Here's a thought I haven't seen on here. I don't think any of you all will substantiate this but, I bet the 4th was Jiraiya's illegitimate kid, making Naruto his grandson, unless we're sure otherwise. It might be far-fetched, but I was just reading before Jiraiya left, and he and Tsunade were talking about the 4th, and Jiraiya said he never had a kid, but if he did, he imagined his relationship with the 4th is what it'd've been like. (Wow. What a run-on sentence. And I made a new contraction, "it'd've." Makes me wonder why there's not more words with multiple apostrophes.) I'm just saying, Jiraiya's been a ladies' man, and even though he wanted to be with the 5th, I'm sure he got some tail in the meantime. What do y'all think?