(masterpiece, best quality, highres, photorealistic, ultra-detailed, cinematic lighting, sharp focus), young 18-year-old blonde girl, fully nude, standing under a shower, water cascading down her smooth skin, long wet blonde hair sticking to her back and shoulders, large expressive blue eyes, flushed cheeks, slightly parted lips, slender and toned body, visible collarbones, perky breasts with erect nipples, flat stomach, curvy hips, firm round buttocks, holding a massive waterproof transparent dildo, explicit insertion scene, anal penetration, vaginal penetration, visible water droplets on skin, seductive facial expression, sensual pose, legs slightly apart, arched back, steam rising around her, glistening wet skin under soft diffused lighting, tiled bathroom walls, water droplets on glass shower door, cinematic depth of field, intimate atmosphere, ultra-realistic skin texture, dynamic composition, focus on explicit detail, professional photography style.