My cousin came to stay at my apartment in Tokyo while preparing for her entrance exams. She used to be skinny and cry easily, but after more than a decade apart, she had grown incredibly cute—and developed a huge, sexy ass. Turned on by her appearance, she started acting provocatively and seductively, repeatedly teasing me with cheeky upskirt views from behind and other bold advances. As she provocatively exposed her ass during exercise, masturbated using her own ass cheeks, and had cum shot all over her gorgeous rear, I fully indulged in her erotic, well-developed backside.