anthro balls black_nose bodily_fluids body_hair brown_body brown_fur claws clothing cum cum_on_ground cumshot ejaculation erection fur genital_fluids genitals hand_on_penis happy_trail humanoid_genitalia humanoid_penis inside leaning leaning_on_wall looking_at_genitalia looking_down looking_pleasured male masturbating muscular muscular_anthro muscular_male navel nipples nude open_mouth pecs penis red_eyes sewer slightly_chubby smile solo standing stone_floor stone_wall thin_tail tuft wall_(structure) whiskers aiaicaptain teenage_mutant_ninja_turtles master_splinter mammal murid murine rat rodent hi_res