Rule 34 Dev - 2boys anthro balls_expansion black_fur blue_body blue_fur canid canine canis closed_eyes demon duo expansion foot_fetish fur furry genital_expansion genitals hug hybrid invalid_tag machine macro male male_only mammal masturbation micro micro_on_macro orange_penis pawpads paws penile penile_masturbation penis penis_hug penis_size_difference penis_tip protogen red_body red_fur samuelwolfo size_difference size_transformation smile testicle_expansion testicles transformation wolf yaoi zeromus zeromusfur zgrate|4656418824