In the intimate confines of Atelier Kaguya, the enchanting sister teacher takes center stage, her skilled hands working magic on a throbbing shaft. With a sultry gaze, she grips the pulsating length, her fingers dancing in a rhythm that's equal parts art and seduction. The studio's warm lighting casts a soft glow on her breasts, heaving with each lustful stroke. She leans in, her tongue flicking out to taste the salty pre-cum, before taking the engorged head into her mouth, her lips stretching to accommodate its girth.