This is one of my favorite Lemon fic ever and the only Naruto "Life becomes a game" type of fic that is long, well written and uses characters like Kotohime and Suzumebachi. Hell I think it may actually be on of the few fics period that has Naruto with Kotohime, Suzumebachi, Kagero and Toki. I've gotta ask will you have Naruto be with any of the following girls: Pakura, Ameyuri Ringo, Kushina Uzumaki and Mito Uzumaki.
For Mito and/or Kushina you could have Orochimaru revive her/them with edo tenshi to try and get rid of Naruto OR Orchimaru cloned either Kushina or Mito(With their memories since Mito at least was a seal master of the highest quality) so he could later have the Uzumaki Longtivity and Kushina's Chakra chains or Mito's Seal mastery.
Also is Naruto ever going to fuck Kotohime again or was that a one time deal?
One moooore thing! Are you almost done with the next chapter? Cause I can't wait for the next chapter. Anyway keep up the Fan-Fucking-Tastic work!... I think I've read one to many Naruto/Tayuya fics.