os-tan
2k-tan
45acp
1girl, ball gag, bdsm, blush, bondage, bound, breasts, censored, collar, elbow gloves, erection, futanari, futasub, gag, gagged, glasses, gloves, greyscale, headdress, looking at viewer, medium breasts, monochrome, nipples, penis, skindentation, solo, suspension, thighhighs
photoshop (medium)