It turned out that the nurse in charge of the hospital where I was admitted was my sister. Despite her being a nurse, during my stay, my body couldn't withstand the abstinence and I experienced erections during cleaning and couldn't hold back from masturbating at night... Seeing this, my sister, while confused, proposed to help relieve my suffering out of a sense of responsibility, but as she touched my restrained penis in front of her, she became excited...
