[Circle Kotatubuton] Iraira Onee-chan to Nibukusai Otouto

An anxious older sister, her shirt unbuttoned to reveal modest breasts, meets her sullen younger brother in a cramped room where they share a tense, intimate moment. As he sweats and clutches a slice of watermelon, she leans in, demanding a kiss and a lick, while his smelly, unwashed body provokes both disgust and desire, leading to a heated exchange that culminates in explicit intimacy. The story closes with a weary cat caption, underscoring the exhausted aftermath of their forbidden encounter.