KSBJ-432 - Living with my airheaded sister-in-law, she keeps seducing me without even knowing it

After returning from a business trip, the protagonist moves in with his brother's family. His sister-in-law is a total airhead who constantly exposes herself and accidentally walks in on him while he's bathing. One drunken night, she begs him to touch her, leading to a forbidden encounter right next to her sleeping husband. The next morning, she has no memory of it, but her body craves more, and she starts seducing him all over again without even realizing it.