Rule 34 Dev - 1boy 2d anthro anthro_male anthro_only anus asgore_dreemurr balls boss_monster caprine disembodied_hand feathers flaccid furry furry_male furry_only handcuffs humanoid humanoid_male humanoid_only male male_only mammal mammal_humanoid musclegut penis rine solo tickling undertale undertale_(series) video_games|2730593840