FURVERT!

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