Rule 34 Dev - anal anal_sex animal_genitalia animal_penis anthro anthro_on_anthro anthro_penetrated anthro_penetrating balls big_penis blonde_hair blue_eyes bodily_fluids canid canine clothing duo equid equine equine_penis erection full_nelson fur gay genital_fluids green_eyes hair horse horsecock humanoid_penis larger_male locker_room male male/male male_only male_penetrated male_penetrating mammal mostly_nude muscular muscular_male mystikfox61 nipples nude open_mouth pecs penetration penis remidragon size_difference smaller_male spread_legs spreading stomach_bulge tongue tongue_out vein yaoi|3908316376