Huge dick teacher's shameless maternity swimming class

Five years after marriage, Kaori has had a serious problem. That's something a baby can't do. I didn't have the courage to get properly tested, and I was living a depressing life. One day, Kaori finds a swimming school on the internet that offers special classes for infertility treatment, and decides to join despite no luck. On the first day of school, a coach with a big dick that appeared in front of Kaori's eyes made her swimsuit look impossibly stiff!