MUJIKAKU LOVE FACTOR

Shun is a businessman who seems serious, but actually loves to have sex. One day, as part of foreplay with his male fuck buddy, he goes to work with a vibrator in his ass. As he's resisting the pleasure, he bumps into Chief Ichinose, his boss whom he detests, in the toilet. And, for some reason, Shun's coaxed into having sex with him! Ichinose is an uptight and rigid guy. Due to his worrying about Shun's loveless sex, he offers to see to his bodily needs until he finds a proper lover. Even though Shun is annoyed with Ichinose, he decides to use his body for his own benefit...!

(Source: Renta!)