Rule 34 Dev - 2020 2boys abs absurd_res alligator alligatorid anthro ass balls_expansion barazoku biceps big_muscles big_penis bodily_fluids clothing crocodilian cum cum_on_clothing cum_on_underwear duo equid equine erection expansion flexing gay genital_expansion genital_fluids genitals green_body growth hi_res huge_cock huge_muscles humanoid_genitalia humanoid_penis hyper hyper_genitalia hyper_muscles hyper_penis jockstrap male male/male male_only mammal muscle_growth muscular muscular_anthro muscular_male navel nipples nude obliques oldshep on_penis pecs penis penis_expansion quads reptile scalie simple_background size_difference size_transformation standing striped_body stripes transformation triceps underwear white_body yaoi zebra|4549248712