When he meets his niece for the first time in a while, he is surprised to find that she has become a grown-up woman... Unable to resist the butt cheeks sticking out of her hot pants, the uncle spends days loosening up his sleeping niece's anal passage! The wicked uncle takes advantage of the fact that his niece is asleep and inserts a vibrator! Although he feels uncomfortable, the niece is gradually developed and before he knows it, she realizes the pleasure of her anus, and inserts the vibrator herself and becomes immersed in anal masturbation... Enjoy the sight of her swallowing her uncle's big dick to the base with her loose anal passage, shaking her big ass and going crazy! *This work is the same as a part of 1drpt00043 "When I secretly played with my sleeping niece's tight anal passage every night, it became so loose that my uncle's big dick could go in all the way to the base," scheduled to be released around June 2023.