Rule 34 Dev - abstract_background animal_genitalia anthro balls bite biting_lip biting_own_lip bodily_fluids crouching derp_eyes genitals hands_behind_head humor male navel nipples on_model penis pose presenting self_bite sheath solo spreading sweat young young_anthro ekuhvielle cartoon_network the_amazing_world_of_gumball gumball_watterson domestic_cat felid feline felis mammal|6010933495