MIAA-185 Kanon Kanade's virgin brother takes his sister's provocation seriously and doesn't notice that he's cumming, so the piston explodes

Kanon Kanade takes on the popular series for the first time! - Nonon made fun of his unpopular virgin brother as a joke. - The younger brother misunderstood that she was actually inviting him, and immediately inserted his cock into the older sister right after their parents left. - She seems to have climaxed with such force, but her younger brother, who is not used to women, doesn't notice and continues to shake his hips. - The piston continues even after climaxing, and the pleasure chases after her, causing her to climax repeatedly, and her resistance is futile as she continues to cum over and over again until her parents come home.