Satomi, a swimming instructor with a stunning figure, had always drawn strong attention from her students. One day, she was caught in a private moment with a colleague in the locker room by a student. Desperate to keep her job, she reluctantly agrees to fulfill the student's desires. Her body is caressed, her erect cock rubbed against her swimsuit, and eventually taken into his mouth. Things escalate further when her superior, who had been eyeing her all along, gets involved.