Rule 34 Dev - alley anthro anus balls black_hair bottomwear bottomwear_down brown_body brown_fur butt city claws clothed clothing dark drain eyewear feet flaccid foot_transformation fur fur_growth genitals glans glasses glasses_askew green_liquid growth hair holding_penis holding_tail humanoid_genitalia humanoid_penis liquid long_tail looking_pleasured lying male masturbation mutagen mutation nipples open_mouth pants pants_down partially_clothed pawpads paws penile penile_masturbation penis pipe presenting presenting_hindquarters soles solo tail thick_thighs transformation underwear underwear_down vein worried fasttrack37d quix animal_humanoid human humanoid mammal mammal_humanoid murid murid_humanoid murine murine_humanoid rat rat_humanoid rodent rodent_humanoid digital_media_(artwork)|10703386645