Rule 34 Dev - 2018 animal_genitalia animal_penis anthro balls border_collie canine canine_penis closed_eyes collie dialogue drinking drinking_urine erection fur hair invalid_tag kingrusty knot knot_in_sheath lustbubbles lying male male_only mammal nude on_back open_mouth peeing penis penis_tip sheath simple_background sleeping snoring solo speech_bubble teeth text tongue tongue_out urine urine_in_mouth watersports wetting|3320647728