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3_toes anthro antlers balls blue_and_white blush blush_lines chain collar collar_only cuff_(restraint)erection feet genitals hair handcuffed handcuffs hands_above_head hi_res horn humanoid_genitalia humanoid_penis lying male metal_cuffs monochrome nipples nude on_back penis restraints simple_background solo toes unknown_artist unknown_species white_background