Actual decently written NaruKushi without it being porn cliche
So, everyone knows one of favourite cliches of Naruto-related porn is Naruto x Kushina pairing. Is that any possibility of it being more than just gooner fantasy (not condoning incest of course). In my opinion it could happen in universe similar to this https://www.reddit.com/r/NarutoFanfiction/comments/1ex4l5m/mashing_naruto_with_hotd_and_the_boys/ in AU when Danzo becomes real puppetmaster behind Hiruzen's reign and Naruto is treated like canon Gaara (IMHO pretty close to Homelander treatment) and so, he develops similar personality to part 1 Gaara (IMHO he was the closest Narutoverse got to Homelander) with his relationship with Hinata being thing which maintains him on village's side (academy graduation age is 16 in that AU, so characters are a lot older than they are in canon). Naruto is physically the strongest from Konoha 12 due to having much more chakra than almost everyone else and experiments ROOT carried on him using his Uzumaki vitality to create supersoldier for Konoha (let alone Naruto being Jinchuriki of 9 tails). There is no Akatsuki in that AU, Fourth War starts when Konoha 12 is all around 17 and ends when they're 20. There is 5 year long time skip and and all of Konoha 12 are 25. Naruto reigns supreme and is village's best weapon, everyone fears him and he makes a lot of profit for corporations who are real power behind Danzo's reign because Danzo outsorced most of country's economy to them to sideline the daimyo.
Orochimaru starts the Fifth Great Shinobi War alongide Suna (Orochimaru's defection and founding of the sound happens in time skip) when they're all 25 but that time he has unusual ally on his side when he's confronted by Naruto who is about to destroy Sound armies it turns Kushina Uzumaki is still alive and is on Orochimaru's side. Orochimaru and Kushina show the proof that Naruto's relationship with Hinata, only thing which caused Naruto to serve the village is fake and that Hinata regularly cheats on him with Kiba. Kushina tells Naruto that Konoha is only looking to trample on Uzumakis and tells Naruto she understands him because Minato cheated on her as well and was on board with plan to impregnate her to create a super soldier. Kushina (50 years old, she had Naruto when she was 25 as well) tells Naruto that no such thing as 9 tails attack happened it was all hoax because it was just her trying to escape Konoha's abuse, Minato took the Nine Tails away from her and took away her memory, but was unable to kill her and so she escaped guided by simple survival instinct. She ended up in Grass country when she became wife of one of the elders until Orochimaru found her and restored her memory. She says that she loves Naruto and she won't let him end up alone and explains that Uzumakis used incest to purify their blood from the times of very founding of the clan when one of Sage of 6 Paths grandsons married his own sister. Kushina states that she and Naruto will rebuild the clan as new supreme race ruling all over others in new Uzushio (she is a bit like Stormfront and Naruto is like Homelander). Mito's marriage to Hashirama was controversial because Uzumakis wanted her to carry on wth incest but Kushina offers herself as Naruto's new partner. Naruto, hurt by Hinata's cheating and never really knowing his bio mom + being desperate for connection and fucked up mentally gives in and sex happens (helped by the fact Kushina doesn't really look 50 due to Uzumaki vitality), Kushina grooms Naruto to have sex with her daughter she had with Grass elder, Karin (19 at that time) as well to repopulate the clan with as purebred Uzumakis as possible. Naruto goes rogue and Konoha is destroyed, Kushina and Orochimaru divide it up, Kushina establishes the new Uzushio with Naruto as it's head. I think Kushina's (being a eugenicist racist from culture which actively encouraged incest) and Naruto's (being treated like canon Gaara, hurt and really never knowing his bio mom that well, also being lab rat whole life so he doesn't really have aversion to incest) reasons for doing that are a lot better here than in most of fics when they're doing that just for the sake of it or form some form of romantic connection (xD).
Sasuke here, due to Fugaku's neglect and being constantly compared to Itachi, turns out to be like Soldier Boy - asshole obsessed with his image of masculine man and alcohol and sex (Sasuke works under Tsunade and Jiraya a lot so he picks up perversion from Jiraya and alcoholism from Tsunade) due to Fugaku's neglect which gets worse when Itachi dies on a mission due to his ilness, but Fugaku blames Sasuke. Sasuke awakens his MS and Izanagi and Izanami are in that AU just Sasuke's MS abilities, with Izanami being just time manipulation and Izanagi working similarly to nerfed version of All Fiction in Medaka Box. Sasuke becomes very highly placed general in Konoha's military, transplants Itachis eyes for EMS gaining Tsukiyomi and Amaterasu (Susanoo with Totsuka and Yata is actually one of Madara's MS abilities here and Madara's only, no other Uchiha had it) but his abusiveness (he beats up Neji for Neji claiming Byakuagan is better than Sharingan) causes Neji, Ino, Hinata, Shino, Shikamaru and Kiba together with anti Danzo faction in Konoha government to make deal with Kiri that Kiri will provide very strong narcotic which could knock out Sasuke if applied to him and in exchange, Sasuke will be shipped off to Kiri. This happens at the end of Fourth World War when they're all 20. Before Sasuke is out of commision he uses Tsukiyomi on Neji, rendering him creepy weird mute similar to Black Noir in the boys. Kiri conducts experiments on Sasuke aimed to reawaken the Rinnegan which they know Sage of 6 path and his elder son possesed and Sasuke is their descendant. They succeed in awakening tomoe Rinnegan but Sasuke is drugged and trapped in Haku's ice jutsu. Zabuza and Kisame, being only of 7 swordsmen of the mist to survive Uzushio are desperate for help and reawaken Sasuke, informing him of the plot to betray him.
Sasuke kills Ino, Hinata, Shino, Shikamaru and Neji and is confronted by Naruto who shows up on battlefield with Kushina and Karin, each with newborn sired by Naruto. There is flashback to Naruto and Sasuke's childhood showing that Naruto always looked up to Sasuke for his strenght and believed in him when no one else did and wanted to be acknowledged by Sasuke and that admiration went deeper with age. Naruto, cutting back to present says to Sasuke he had no knowledge of the plot and reveals to him that they're both Minato's sons because Minato cheated on Kushina with Mikoto and Sasuke is his son in reality, not Fugakus. Naruto states that they're both the strongest and no one will oppose them if they ruled together. Thoughts?