[Takase Yuu] Ijiwaru ≒ Daisuki (Himitsu no Shounen-dan) [Shiranai Translations]

An uncertain girl questions whether she truly looks like a girl, then boldly declares her perverse affection for her older brother, prompting an intense, taboo-filled encounter. She teases and dominates him, demanding his release while reveling in the forbidden intimacy. The story builds from shy confession to explicit, passionate climax, highlighting the power dynamics and erotic tension between the siblings.