animal_genitaliaanimal_penisanthroballsbig_ballsbig_penisblue_and_whitebodily_fluidsbody_worshipcumcum_stringdigital_drawing_(artwork)digital_media_(artwork)disembodied_penisduoequidequineequine_genitaliaequine_peniserectionflared_penisgenital_fluidsgenital_worshipgenitalshi_reshorsehuge_penismalemale/malemammalmicromonochromemotpenilepenispenis_worshipsketchtailveinwhatwhat_has_science_done