k-on!
tainaka ritsu
s zenith lee
1girl, arms behind back, bad end, bdsm, blood, blush, bondage, bound, drugged, drugs, flat chest, gag, gagged, hands, improvised gag, injection, nipple injection, nipple stimulation, nipple torture, nipples, nude, pain, simple background, sketch, solo focus, sweat, syringe, tape, tape gag, tears, torture, upper body, white background, wince