RTP-052 — "Big Brother! I Love You!!" My Little Sister, Who Loves Me So Much That It's Obvious From Her Everyday Behavior, Has Finally Confessed The Forbidden Truth To Me! When My Cute, High School Sister With A Tight Body Told Me That, I Lost My Senses And Said, "This Is The Only Time..."

My little sister likes me so much that you can tell from her usual behavior. She's a high school girl and cute, but I can't cross the line between brother and sister. But she finally confessed her feelings to me and looked at me with tearful eyes, so I said "I-I can't help it... this is the only time..." and decided to act like an adult and cross the line...!