FURVERT!

3:4 absurd_res anal anal_penetration anthro balls blush bodily_fluids canid canine canis collar cum curtis_wuedti domestic_dog duo erection genital_fluids genitals grey_background hi_res humanoid_genitalia humanoid_penis looking_pleasured male male/male male_penetrated male_penetrating male_penetrating_male mammal monochrome muscular muscular_male nipples nude orgasm pecs penetration penis sex simple_background spiked_collar spikes submissive submissive_male tongue tongue_out