Yuuna's hands, slick with oil, glide over the client's muscular back, her touch firm yet sensual. She pauses at his waist, her fingers lingering at the edge of his towel, teasingly close to his throbbing cock. With a swift, deliberate movement, she pulls the towel away, revealing his full, erect length. She wraps her small hand around him, her thumb brushing against his sensitive tip. His breath catches as she begins to stroke him, her pace steady and sure, her touch sending waves of pleasure coursing through him.