FURVERT!

2011 abs anal anal_penetration animal_genitalia animal_penis anthro anthro_on_anthro anus backdraft balls biceps big_penis black_nose blue_body blue_eyes blue_fur blush bodily_fluids border_collie cam_collins canid canine canine_genitalia canine_penis canis collie cum cum_in_ass cum_inside cumshot domestic_dog duo ejaculation erection from_behind_position fur genital_fluids genitals herding_dog knot leaking male male/male male_on_bottom male_on_top male_penetrated male_penetrating male_penetrating_male mammal muscular nude on_bottom on_top orgasm pastoral_dog pec_grab pecs penetration penis reverse_cowgirl_position sex sheath sheepdog spread_legs spreading tail thick_penis wolf wolfblade wuffamute