At a hospital or dentist where women with large breasts that can be seen even through clothes work, a man gets an erection when his breasts are touched unconsciously during treatment. When he shows his erection to the women... At first they look away, but then they start to feel guilty, thinking "it's my breasts..." and excited to see the erect penis, and they start to serve the man. Eventually, they get turned on and even have sex without refusing.