[Okusaka Maeue] My Younger Sister Is Like An Older Sister (COMIC Mate Legend Vol.66 2025-12) [JnTo]

A shy younger sister, Rita, teases her older brother with a lap pillow and a leotard‑clad body, promising to lecture him about sex while he struggles with his forbidden feelings. She presses her naked, squishy tummy against his eager penis, begging him to rub it and cum inside her sister’s womb, her eyes wide with eager anticipation. The heated incest unfolds as she drinks his juice, licks his cock, and embraces the nakadashi climax, sealing their twisted bond.