Suppressed Flame
After the Fourth War, Sasuke returns to Konoha only to discover that Naruto has been hiding his true Omega nature for years using dangerous Kyuubi-enhanced seals. The moment the last seal breaks under Sasuke’s teeth, Naruto’s overwhelming scent awakens something primal and vicious in the last Uchiha.
What begins as a dark, one-sided claim quickly spirals into a toxic, all-consuming bond. Sasuke becomes violently possessive, using Naruto’s body whenever he pleases — during brutal ruts and forced heats — while Naruto fights, hates, and eventually craves the only person who can truly break and complete him. Their relationship is filthy, painful, and obsessive: heavy degradation, multiple knotting sessions, breeding, and permanent claiming marks.
The village slowly notices something is wrong, but by then Sasuke has already decided Naruto is his alone. Dark, long-burn story with intense explicit scenes, power struggle, and eventual broken mutual obsession.