FURVERT!

animal_genitalia anthro balls big_balls big_penis bird_dog box-s brown_eyes canid canine canis college_student domestic_dog erection floppy_ears fur genitals golden_retriever huge_penis hunting_dog kevin_(wsad)knot male mammal model_sheet muscle_tone muscular muscular_anthro muscular_male neck_tuft orange_body orange_fur penis retriever sheath solo tuft vein veiny_knot veiny_penis