Koji discovers GF's wild side online

What would you do if you found a video of your girlfriend getting fucked online? When unlucky Koji sees a clip of his gf's best friend getting tag-teamed, he knows even worse is waiting for him. He has to watch every minute as his busty tsundere girlfriend, Yumi, gets her pussy and ass penetrated on camera, turning into a squirting cumslut before his very eyes. Will Koji break up with her... or become enough of a pervert to keep up with her newfound cravings?