Mikasa Ackerman from Attack on Titan, cute slender girl, athletic body, medium breasts, bent over a wooden table, her wrists bound tightly behind her back with leather straps, wearing only her white shirt which is torn and hanging open, a man with a muscular build is fucking her ass from behind, holding her hips with a firm grip, she is biting her lip to suppress a moan, her eyes filled with defiant tears, a leather gag is around her neck but not in her mouth, her black hair falls over her face, sharp grey eyes looking back at the man with a mix of hatred and submission, the room is dark and lit by a single hanging bulb, detailed anatomy, anime style, 8k