Fuku/Nase is so left field that I really can't say anything about it. Though now that you have said it my mind have decided to go full throttle ahead. Nase seem the type to try out new things (even if its doomed for failure), so I suppose going out with Fuku would be an experiment type of thing. But seriously they seem to have more of a Older!Sister-Younger!Brother type of relationship.

Hinata/Neji/Naruto! Now that I can see happening. Half of the time I'm a firm believer that Neji and Hinata will get married, if for nothing else but for political reasons. Main Family and Branch Family joined together, etc. Beside, Neji did comment on Hinata being cute (sure, this was way back before the HATE began but detail). The other half of the time I'm all for Neji and NAruto being together, 'cos if nothing else we can go for the 'Naruto saved Neji, now Neji is IN LOVE!!!' type of argument (which ic sort of shallow reasoning but who cares anyway. They look good together).

Since Hinata already likes/loves Naruto it won't be so hard to talk her into a threesome. Also, if Naruto really wants BOTH Neji and Hinata he can probably have it (I just don't see Neji being able to deny Naruto on much), and like I said Hinata can be easily persuaded on this front.

In addition, if Naruto does become the Hokage I doubt the Hyuuga Clan will say much if he does decide to participate in a threesome with Neji and Hinata. There will probably be some grumbling, but with the weight of the Hokage and the strongest Hyuuga in the longest time, as well as teh Head of Hyuuga the Clan will just have to put up with it.

My dream 'Naruto' threesome really ^_^V