A sister who has had a physical relationship with her brother. Although she initially refused, she couldn't forget the pleasure of having his penis inserted, and masturbated. She couldn't hold back any longer, and said, "I want to do it again..." and asked for sex herself, leading to a thick creampie. This incestuous relationship that crossed the line has become a daily occurrence. *This work is a part of the "Less Than Incest Life with a Sister Who Lets Me Insert My Dick Up to 3cm" series. This is an excerpt from " Mitsuki Nagisa" (product number: dvaj00402).