Shy office lady Kana Nagasawa gradually loses her resistance as she's pressured by her male coworker, her hidden erotic nature emerging as every erogenous zone on her body is stimulated. Left alone together at the office late at night, she's brought to multiple orgasms with a vibrator before having a cock inserted into her. Riding him in cowgirl position, her G-spot is intensely stimulated, causing her to gush and convulse through repeated climaxes. Finally, she performs a mounted blowjob, receiving a massive cumshot on her tongue and swallowing every drop with a loud "Gulp!"