A man was nervous about living with a woman who was not related to him by blood when his brother got married. However, his brother's wife, Emi, was kind and beautiful, and he instantly fell in love with her. He couldn't suppress his feelings for her, but he confessed his feelings to her, but his confession was a failure. In desperation, he asked her to kiss just the tip of his penis, and to his surprise she agreed. He got carried away and asked her to insert just three centimeters, which she reluctantly agreed to. At first, he only intended to insert three centimeters, but as her super sensitive tip was stimulated, he couldn't hold back any longer...