FURVERT!

5_fingers animal_genitalia animal_penis anthro ball_tuft balls blue_markings bodily_fluids canid canine canine_genitalia canine_penis canis close-up crotch_tuft digital_media_(artwork)dripping erection fingers fur genital_close-up genital_fluids genital_shot genitals grey_body grey_fur hi_res holding_knot_root holding_own_penis holding_penis illbarks knot knot_root male mammal markings masturbation matt_wolf nude penile penile_masturbation penis penis_close-up penis_shot precum presenting presenting_penis simple_background sitting solo tuft vein veiny_knot veiny_penis wolf