My married sister who is raising a daughter alone asked me to take care of my niece for a few days while she's on a business trip. My niece, whom I hadn't seen in years, had grown not only taller but also well-endowed, her school blouse stretched taut across her chest. Hey now, she's your niece! I tried to calm myself down, but the innocent bouncing breasts in front of me made my male instincts override reason, leading to an incestuous erection. When my niece spotted my erection, she happily trapped it between her breasts! With her firm, bouncy tits, she gave me a paizuri, making me cum instantly and continue fucking until my balls were completely empty!
