All Exposed Erotic Model -An Artist's Indecent Brushwork-

"Don't stir it around in there...!" He came to work as a nude model but instead has his behind loosened with brushes and oil and becomes an artist's artwork (toy)!? Tsubame decides to work as a nude model for the famous artist Shirogane. Seeing Tsubame, nervous from being completely naked, the artist asks him to masturbate!! Shirogane lays his hands on Tsubame and puts his hard thing into his mouth!! Tsubame is made to come over and over for the sake of art. Is this really a nude model's job!?