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anthro balls big_balls big_penis biped blush bodily_fluids claws countershade_tail countershading dinosaur english_text erection genital_fluids genitals glans hi_res huge_balls huge_penis humanoid_genitalia humanoid_penis larathen larathen_(character)letterbox male non-mammal_balls penis precum prehistoric_species reptile saurischian scalie solo tail text theropod tyrannosaurid tyrannosauroid tyrannosaurus tyrannosaurus_rex vein veiny_penis