Rule 34 Dev - 2boys ankle_band anthro armband collar diphallia diphallism duo fish genitals hi_res human humanoid_genitalia humanoid_penis legband male male/male male_only mammal marine membrane_(anatomy) merging mot multi_genitalia multi_penis muscular muscular_male penis shark thick_tail tongue tongue_out webbed_feet webbed_hands wristband|4980054192