Rule 34 Dev - animal_genitalia animal_penis anthro balls biped birthday canine_genitalia canine_penis erection fur genitals gift inviting knot male multicolored_penis nude penis presenting simple_background sitting smile smirk solo arzaid chuki mammal mouse murid murine rodent 2019 digital_media_(artwork) digital_painting_(artwork) hi_res shaded|9416799175