Una, cloaked in her jacket, retreats to her room, her heart pounding with forbidden desires. She locks the door, her hands trembling as she unbuttons her shirt, revealing her lacy bra. Her breath hitches as she slides her hand into her panties, stroking herself tentatively at first, then with increasing urgency. The sound of her own moans fills the room as she brings herself to the brink, her body arching as she finds release. Suddenly, the door creaks open, and Una freezes, her secret exposed.