Rule 34 Dev - ai_generated anthro background balls black_body black_fur black_nose canid canine canis erect_penis erection fur furry genitals great_dane hi_res humanoid_penis looking_away male male_only mammal mastiff molosser muscles muscular muscular_male penis pose solo solo_male tree two_tone_body two_tone_fur white_body white_fur|12765758888