I'm guessing Yuffie isn't going to like what she sees when she returns home, or something and Aerith is going to miss Kiba, or something and they return to Konoha and THEN starts Kiba's little harem...or you scrapped it completely. Whichever. I only really had a prob with having to read about the details of Kiba and his harem more than the fact he had one; also that he had Aerith.
Question, was Naruto still in Sage mode before Karura attacked? If so, how did he not sense her? How did she get an attack? His reflexes are beyond her capabilities while he's in that mode