START-381 — Our First Sleepover with My 19-Year-Old Factory Coworker Girlfriend—She Turns Out to Be a Slender, Extremely Lewd Sex Monster… Kanna Amane
At the factory, a plain, quiet female coworker and I gradually realize that our feelings are mutual. One day she confesses, and we start dating. We are both introverted homebodies who share a love of games and manga. Today is my girlfriend's 19th birthday. Since we do not care for elaborate events, we buy groceries and a cake at the supermarket and settle in at home for a cozy celebration and our first sleepover date.
