Oil painting texture, fantasy art, nun in pure white habit kneeling before me, habit slightly disheveled, one shoulder slipping down, my hand gently brushing her bare shoulder, she shudders, her hand clutching rosary beads tightly, her other hand gripping my sleeve, face flushed, eyes looking up at me half-lidded, lips parted breathing uneven, church interior background, 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, sensual tension barely contained, erotic undertones, dark fantasy.