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anthro anthro_on_anthro armpit_hair ball_tuft balls bared_teeth bdsm body_hair bondage bound butt chest_tuft chin_tuft dagg dinosaur dromaeosaurid duo edging erection eyes_closed facial_tuft genitals grin hair hands_above_head hands_tied head_feathers hi_res humanoid_genitalia humanoid_penis kangaroo macropod male male/male mammal marsupial monochrome motion_lines muscular muscular_anthro muscular_male nude penis prehistoric_species pubes reptile saurischian scalie short_hair smile solaxe solaxe_(artist)standing striped_arms teeth theropod tuft vein veiny_penis