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2015 ambiguous_gender animal_genitalia big_penis bite biting_another biting_partner bodily_fluids brown_body brown_scales cloaca dinosaur drooling duo erection feral feral_on_feral genitals green_body green_scales hadrosaurid hypacrosaurus imminent_rape imminent_sex interspecies lying male male/ambiguous multicolored_body multicolored_scales on_side ornithischian ornithopod penis pinned predator/prey prehistoric_species reptile rollwulf saliva saurischian scales scalie sharp_teeth side_view tail teeth theropod two_tone_body two_tone_scales tyrannosaurid tyrannosauroid tyrannosaurus tyrannosaurus_rex yellow_body yellow_scales