A attractive sexy young woman with long wavy brown hair, bright blue eyes, and a confident smile, taking a mirror selfie in a modern gym. She has an athletic hourglass figure with large breasts, slim waist, wide hips, toned legs, and a navel piercing. She is nude. She holds an iPhone with a glittery case in her right hand, left hand lightly touching her hair. The background shows treadmills, stationary bikes, large windows with natural light, and gym equipment. High detail, realistic skin texture, sharp focus, gym mirror reflection, vibrant colors, seductive pose, front view