Rikka started attending swimming classes at the public pool with her mother. She had always trusted the instructor who gave careful guidance, but... The perverted instructor became aroused by Rikka's nipples, which were visible through her competitive swimwear despite still being in development, and began days of lewd nipple development. Rikka's nipples, stimulated and made more sensitive over the smooth fabric of her swimsuit, quickly became highly sensitive, ripening lewdly and driving her to ecstasy. Both the swimsuit and the training became more intense, ultimately leading to internal ejaculation...
