Oil painting texture, fantasy art, mature nun in crisp white habit fully covered, kneeling before me, hands clasped tightly around rosary, knuckles white, eyes downcast but flickering up briefly, years of restraint showing in her face, lips pressed thin, my hand reaching out hovering near her chin, her breath catching, slight flush creeping up neck, church interior, soft light through stained glass, dramatic chiaroscuro, sacred压抑 atmosphere, intimate first-person perspective, intricate details, masterpiece, best quality, 8k, ultra-detailed, Rembrandt lighting, restrained desire, mature sensual tension, erotic undertones, dark fantasy.