FURVERT!

5_fingers 5_toes animal_genitalia annoyed claws cloaca curved_penis erection eupelycosaur feet feral fingers genitals gorgonopsid graphite_(artwork)hi_res holding_leg inostrancevia looking_back lying male nude on_side penis prehistoric_species quadruped seminal_groove side_view simple_background sketch small_tail solo synapsid tail tapering_penis therapsid toes traditional_media_(artwork)zw3