The cute Okubo Yu-chan has an unpretentious cuteness that seems like something you might find in your neighborhood, and we're having an embarrassing measurement competition where we get to see her asshole, including measuring her vaginal temperature! We measure the size of her pupils and nipples, and even measure the size and temperature of her pussy with her legs spread in an M-shape! So, do these sizes and temperatures change after sex? Experiment, experiment! We enjoy sex with cute Yu-chan, and are surprised by the changes in each size and the sudden rise in her vaginal temperature after creampie!
