FURVERT!

after_masturbation anthro balls bodily_fluids butt butt_from_the_front canid canine canis collar cum cum_on_penis domestic_dog erection genital_fluids genitals hand_behind_head hi_res humanoid_genitalia humanoid_penis lying male mammal on_back penetrable_sex_toy penis roger_(artbyyellowdog)sex_toy simple_background solo sweat traditional_media_(artwork)yellowdog