The slut who clings to her mouth and spits her saliva Kasaka Sari

Female college student Saru Kosaka was introduced by a friend to be a tutor for two male students. Under her guidance, the students' grades improved and she felt very fulfilled, but she had a secret that she could not tell others. That is, she will stick up and lick the student with her lustful tongue, squeezing out a lot of semen from his crotch!