OBA-287 From an accidental kiss to incestuous sex with a nephew

My sister's son, Masato, is attending a summer intensive course at a major cram school in Tokyo, so he'll be staying at my place for about two weeks. Masato, who was a spoiled brat when we were young, has grown into a fine man. I felt his charm not as an uncle but as a man. One day, by chance, our lips touched. 'This was an accident, not a kiss...' I told myself, but I couldn't forget the sensation of his lips for a long time.