A certain summer vacation. Kanae went on a family trip with her husband, her older sister, and her nephew Takeshi, who had become a college student. Inside the car on the way, what Kanae couldn't help but double-take at was Takeshi's "cock," which was so erect it was popping out of his shorts! "It's okay, leave it to your aunt..." Kanae gently gave him a handjob, but... However, at the pool, during naps, and in the mixed-gender family bath, Takeshi's erect cock showed no signs of calming down. As her nephew's cock kept popping up no matter how many times she relieved him, Kanae's horniness reached its peak... TAMEIKE exclusive Kanae Yumemi's maternal instincts are in full bloom, the best summer ever!!