Kota, the son, was casually watching his mother clean the bathtub. His mother accidentally slipped and fell into the bathtub filled with hot water. Her clothes got soaked and her braless breasts became visible. Kota felt like a woman when he saw his mother's sexy figure, and he began to immorally stroke his erect penis while having lewd fantasies. His mother noticed what was going on and tried to question her son, but...