At her boyfriend's company, where he's busy dealing with the boss, cute girlfriend Rin Amane starts seducing him playfully. Teasing him with "You're not turned on by sex at the office?" she pushes him until he can't resist and they start having sex. When someone suddenly approaches, they panic but continue quietly, muffling their moans. Yet Rin feels unsatisfied—this insatiable girl demands a second round. Under the excuse of giving him a "first-time experience," she brings out a vibrator and a dildo to play with him. Excited by this new kind of sex, her blowjob skills shine, and when the electric massager hits her clit, she begs, "Watch me closely!" Erotticcc! The second round unfolds just as lewdly as the first. With a slender, flexible dancer's body from years of ballet, her grinding cowgirl ride is a must-see.