[R-Koga] Papa's Sex Education Ch1-5

Homiku's habit of taking nude selfies lands in exactly the wrong hands when her apron-wearing househusband father stumbles across the photo, and his flustered panic over 'what the hell' she's doing spirals into hands-on lessons no school ever taught. Across the chapters, each daughter gets her own 'practice' with Papa—Shiori is slowly fingered in a steamy bathtub and sworn to keep it secret from Mom, another girl tugs her panties aside because she can't get pregnant yet and he hates condoms, and Momona ends up dripping a fresh mess of nakadashi while a bespectacled young man apologizes for finishing too soon. By the finale the ache never really goes away, a whirring camera starts recording every slick detail, and 'helping each other endure it' becomes a secret arrangement neither of them intends to give up.