[Kisho-Muri (A6)] Kake-nii! {Chin²}

Two young brothers share a tender yet forbidden bond, their playful tickling sessions spiraling into intimate, exploratory encounters as curiosity overtakes innocence. From sweaty wrestling matches with breathy giggles to the older sibling's teasing declarations about everyone's hidden weaknesses, the tension builds until their small, nude bodies press together in fumbling, secret passion. Boundaries blur between childish affection and something more, with panicked protests and drawn-out gasps revealing the raw, overwhelming thrill of their private discovery.