ATID-533 Ten years ago, I was masturbating in my room and got caught by my shut-in sister. From that day on, we started having sex secretly from our parents. Tsukino Luna

10 years ago, when I was masturbating in my room, my withdrawn sister saw me. My girlfriend’s older sister who was curious about the male genitalia began to touch my cock… I just ejaculated. From that day on, we took advantage of the absence of our parents and asked each other to devour each other’s bodies.