[Exclusive: Riho Shishido's first NTR challenge!] Struggling with her boyfriend's living together, Riho consults with her kind senior at work, but ends up crossing the line. Initially resistant, she becomes addicted to his endless stamina and orgasm techniques. In doggy style and reverse cowgirl, her huge ass gets pounded repeatedly, arching her back in ecstasy. In return, she serves him with her beautiful G-cup tits in a titfuck and rides him cowgirl style. Riho's happy cohabitation with her boyfriend starts to crumble...