The Big ImageBoard (TBIB) - anal anal penetration animal genitalia anthro balls black body black fur blue body blue fur blue markings bodily fluids brown body brown fur canid canine canis claws cum cum in ass cum inside domestic dog duo field fingers fur genital fluids genitals german shepherd grass grey body grey fur herding dog logo lying male male/male mammal markings nude on back open mouth outside pastoral dog penetration sheath signature sky slightly chubby smile smirk tailtufts teeth watermark whiskers white body white fur wolf