FURVERT!

absurd_res anus big_butt bottomwear bottomwear_down butt butt_expansion chemicals clothed clothing coat expansion growth hi_res human human_to_anthro humanoid krim_hue lab_coat laboratory_equipment laboratory_glassware lizard looking_back male mammal pants pants_down partially_clothed purple_body purple_scales reptile scales scalie scientific_instrument scientist solo species_transformation tail tail_growth test_tube topwear transformation