FURVERT!

anthro balls big_penis biped bottomless clothed clothing conditional_dnp erection eyes_closed genitals hair hi_res high-angle_view humanoid_genitalia humanoid_penis male mammal monochrome murid murine navel oouna open_clothing open_shirt open_topwear penis punk_rat_(rakakuza)rat rodent sepia shirt sitting sketch solo topwear undressing