Rule 34 Dev - 2boys all_fours anthro babulon black_fur black_hair bubble_butt cat_ears cat_tail catboy collar completely_nude erection fellatio full_body kengan_(series) kengan_ashura leash licking_penis male male_only muscular muscular_male nude oral paws penis solo_focus tokita_ohma tongue_out uncensored wavy_hair yaoi|7944476056