Rule 34 Dev - 2018 anthro balls bowser canid canine canis cum domestic_dog duo erection fingering fur gay hair hi_res husky koopa langdon_marston male male_only mammal mario_(series) nintendo nordic_sled_dog nude open_mouth oral paws penis rrowdybeast scalie sex simple_background spikes spitz teeth tongue video_games white_fur yaoi|3548533224