A good student worth teaching. A big-breasted beautiful girl who doesn't know how to please a man shows us how she normally pleases a man. She then gives a deep throat blowjob, dripping saliva, and a lesson in paizuri, gradually taking on a womanly face. She teaches him that stringy tongue kissing feels good, and then instructs him to give a sloppy blowjob and a paizuri with drool, leading to his first paizuri ejaculation. Next, Ruka makes him say obscene things about the act of pleasing the man, dripping saliva and sucking it in herself. She pinches his nipples and gives him a paizuri, feeling herself, as she invites him to ejaculation. She moves her tongue naughtily as if to show the results of her lesson, begging for a blowjob. She carefully licks from his balls to his anus, and gives him a paizuri with dirty talk. When the saliva drips, she sucks it up while licking his dick, and enjoys the cum on her face. At the end, she puts on a ball gag and waits for the man, drooling. She seeks the man herself, exchanges stringy French kisses many times, and climaxes with fingering while drooling. "It feels so good I can't stop," she says, and drool flies into the air every time she is thrusted. Keep an eye on the changing appearance of this pure and beautiful girl who is worth training!