os-tan
2k-tan
1girl, arms behind back, ass, bdsm, blue eyes, blue hair, bondage, bound, bound wrists, bucket, casual one-piece swimsuit, cuffs, dutch angle, glasses, halterneck, handcuffs, kneeling, looking back, one-piece swimsuit, open mouth, solo, sweatdrop, swimsuit, syringe, thighhighs, wedgie
artist request