FURVERT!

anthro anus backsack balls blush body_blush brown_rat butt butt_blush foreskin fur genitals glistening glistening_butt grey_body grey_fur haxsmack looking_back male mammal master_splinter mature_male murid murine penis presenting presenting_anus rat rise_of_the_teenage_mutant_ninja_turtles rodent solo teenage_mutant_ninja_turtles topknot