Monaka, my little sister. Though tomboyish and sporty in demeanor, she has a great figure and well-developed breasts. Among her friends, she's considered a top romantic prospect. Driven by the fear of losing her to another guy, I sensed she might have already been involved with a few others—but I believed she'd never experienced creampie. So I, her older brother, decided to give it to her hard and fill her deep inside. Her innocent, pure appearance as my sister stirs an irresistible masculine desire.