Riho, a female college student who doesn't have enough credits because she's been playing around with men too much, seduces her sex-addicted professor with her big breasts and invites him to a secret hot spring for some erotic fun... As expected, the professor's virility keeps on flowing no matter how much he squeezes, to my delight. She also invites the associate professor who she has double-booked with, and they have a night of squirting sex, earning both credits and pleasure. The virile professor and the sex-crazed college girl, who ignore each other's status and position and pursue their own pleasure honestly, have a sweaty, squirting, dripping sex session...