https://civitai.com/models/582891/mouth-tube-bondage

Example prompt: score_9, score_8_up, score_7_up, score_6_up, mout tube, tube attached to mouth, tube gag,1girl , dark dungeon, connected collars, detailed latex clothing, piercings, sweating, excessive bondage gear, nipple piercing, bondage clothing, high boots, closeup on face, focus on face