"I want to do it. Just once…," thought sister Kaede (20). She has an older brother (25), and as her awareness of him grows, she decides to stay overnight at his apartment to test her feelings. As a gift, she brings an AV themed around incest, instantly turning herself on. She suggests roleplaying the AV scene, lets her brother touch her breasts, removes her panties, and flaunts her shaved pussy. "Has my body turned sexy?" she asks, making him gasp in surprise. Then she pulls down his pants and starts giving him a handjob. Overcome with desire, she urges, "Put it in me!" taking the next step forward.