Active female college student, Komatsumoto Ka, appeared in an adult video herself, wanting to study cuckold sex from a female perspective. Although she has a boyfriend, this intelligent, short-haired, fair-skinned beauty has never had physical sex with a man she doesn't love. However, she came here out of curiosity and her innocent smile was appealing. For the first time, she went to a hotel alone with a man she didn't know and had sex with him. Her slender body and pure pubic hair are the only ones she's seen with her boyfriend. She feels every kiss, hug, and blowjob out loud. Her thin waist twists and rubs against her uterus in a cowgirl position. Her perverted nature is revealed. After sex, she gives a blowjob in the bath and has a threesome with another man. While fucking the cheating dick, she says, "Say you love me, I love you...it feels so good!" This is a cuckold video that she would never show to her boyfriend. Her research doesn't seem to be over yet.