FURVERT!

1:1 2014 aaron_(artist)abs anthro anus athletic backsack balls biceps big_balls big_butt big_penis bigdaddyrhino biped border butt digital_media_(artwork)erection flaccid foreskin genitals grey_body grey_skin grin hair hi_res horn humanoid_genitalia humanoid_penis looking_at_viewer lying male mammal muscular muscular_anthro nude on_side partially_retracted_foreskin pecs penis pink_eyes pink_hair pose rhinoceros smile solo spread_legs spreading teeth thick_penis vein white_border