Rule 34 Dev - animal_genitalia anthro balls biceps big_balls big_penis canine canine_penis diphallia diphallism duo erection fox fur furry male male_only mammal monochrome multi_penis multiple_males muscles no_humans oral oral_sex penetration penis plain_background rotor_the_walrus sega sex sonic_(series) tails tongue uncut wolfblade yaoi|1784931248