Step into the tantalizing world of 19 yrs old Kotomi Shinozaki as she indulges in her secret obsession with belly button pleasure. Watch as this addictive beauty takes her desire to new heights, unleashing her insatiable cravings during late-night office hours. With a pen in hand, she surrenders to the irresistible urge, teasing her vertical belly button by delicately plunging the ballpoint pen deep within. Experience the forbidden allure of a young office vixen succumbing to the forbidden pleasures of belly button self-pleasure.