FURVERT!

against_surface anatomically_correct anatomically_correct_genitalia animal_genitalia anus ass_on_glass balls balls_on_glass butt domestic_ferret feral fully_sheathed fur genitals glass grey_body grey_fur hi_res looking_at_viewer male mammal mustelid musteline on_glass on_surface paws resachii sachii_(resachii)sheath sitting solo tail tail_anus tongue tongue_out true_musteline weasel