To prepare well for the upcoming exam, I was sent by my parents to stay at my aunt and uncle's house in the city to gradually get familiar with the environment here and have quiet time to focus on studying. However, when I came here, I only focused on my aunt Tachibana's wife. She is both beautiful and has a pair of big breasts that mesmerize me, always secretly staring at them. Sensual and indecent images always appear in my mind. I even imagined scenes of her sucking her own husband's penis. Many times, I secretly sniffed her underwear and watched her bathe. Those actions seemed insufficient to satisfy me, I couldn't bear it anymore, so one time I gathered all my courage to tell my aunt everything and expressed my desire to have sex with her just once. My aunt's reaction was beyond my expectations. Initially, she seemed sympathetic, then happily agreed to have a relationship with me not only once but many more times afterward.