Rule 34 Dev - 2_penises abs anthro armpit_hair back_muscles balls bathing benjamin_lyon biceps big_balls big_bulge big_muscles big_penis body_hair border_collie brown_body brown_fur brown_hair bulge canid canine canis chest_tuft collie diphallia diphallism domestic_dog duo english_text erection erection_under_towel feet felid fish fur genitals group growth hair herding_dog hi_res huge_balls huge_cock larger_male leg_tuft lion long_penis male male/male mammal marine measurements multi_genitalia multi_penis muscle_growth muscular muscular_anthro muscular_male neck_tuft nipples pantherine pastoral_dog pecs penis red_body shark sheepdog shower shower_room showering size_difference smaller_male smiling_at_partner text thought_bubble towel towel_only tuft vaniwall white_body white_fur zack_howell|11685299656