My sister was going on a business trip, so I was asked to take care of her for a few days. I met my niece for the first time in several years, and her breasts had grown so big that her uniform blouse was bursting with Kokoro. I tried to calm myself down by telling her it was my niece, but my male instincts got the better of me and I got a boner. When my devilish niece saw that it was a big dick, she happily squeezed it between her breasts! She gave me a titty fuck with her firm breasts, and I came instantly, and she kept sucking my balls until they were empty!