FURVERT!

anthro anus arms_tied ball_gag balls barefoot biped blush bound butt cave_story erection feet foreskin gag gagged genitals glaring greyscale hi_res humanoid_genitalia humanoid_penis king_(cave_story)lagomorph legs_up looking_at_viewer lying male mammal mimiga monochrome navel nivy_(artist)nude on_back partially_retracted_foreskin penis raised_arm slightly_chubby solo spread_legs spreading submissive submissive_male vein veiny_penis