That JAV

Rokka started attending swimming lessons at a public swimming pool with her mother. She trusts the instructor, who is always very attentive, but... The perverted instructor, who had a crush on Rokka's still-developing nipples, which were unknowingly showing through her swimming suit, began his days of indecent nipple development.... Rokka's nipples, which had been stimulated by the smooth material of the swimsuit, soon became more sensitive, ripened, and came to a frenzy. The swimsuit and the training become more extreme, and finally she even gets Nakadashi....