Rule 34 Dev - anal anal_penetration anthro blush clothing coat dildo duo eyewear eyewear_only facial_hair_to_fur fur fur_growth genitals glasses glasses_only growth hooves horn horn_growth human_to_anthro kissing lab_coat male male/male male_penetrated male_penetrating male_penetrating_male nipples nude penetration penis science_fiction sex sex_toy snout snout_growth species_transformation tail tail_growth topwear transformation transformation_by_substance transformation_sequence transformation_through_kiss transformation_through_sex wearing_glasses sinisk bovid bovine cattle human mammal hi_res|19828580485