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anthro anus ass_up back_spikes balls black_balls black_nose blue_body bodily_fluids breath canid canine canis cheek_tuft claws countershading curled_horn deathclaw dipstick_ears dipstick_tail domestic_dog drooling duo ear_markings facial_tuft fallout finger_claws genitals gradient_background green_eyes hand_on_back hi_res horn imminent_sex looking_up_at_partner male male/male mammal markings medial_ring microsoft multi_medial_ring multicolored_ears nipples nude open_mouth penis pink_penis raised_tail saliva scalie simple_background spiked_tail spikes spikes_(anatomy)standing tail tail_markings tapering_penis toe_claws tuft xo-underground yellow_body yellow_countershading