FURVERT!

2015 abstract_background animal_genitalia anthro arms_tied back_muscles backsack ball_gag balls barazoku barefoot bdsm biceps big_penis biped black_eyes blush bondage bound butt digital_media_(artwork)eddie_(evane)erection eyewear feet foreskin gag gagged genitals glasses grey_body grey_skin half-erect hands_tied hi_res hindpaw horn huge_penis humanoid_feet humanoid_genitalia humanoid_penis kneeling looking_at_viewer looking_back male mammal manly mature_male muscular muscular_anthro muscular_male muscular_sub nude partially_retracted_foreskin paws penis perineum plantigrade pose raised_arm rear_view restraints rhinoceros rikitsu rope rope_bondage simple_background slave soles solo submissive submissive_male thick_penis toes vein veiny_penis