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animal_genitalia anthro balls big_penis bodily_fluids claws dinosaur english_text epicurean_delights erection expansion feral_to_anthro genital_expansion genitals grey_body grey_scales growth growth_lines khan_(korboryn)male muscle_growth muscular muscular_anthro muscular_male open_mouth orgasm penis penis_expansion prehistoric_species reptile saurischian scales scalie simple_background solo tail teeth text theropod thick_penis thick_tail tongue transformation tube tyrannosaurid tyrannosauroid tyrannosaurus tyrannosaurus_rex vein veiny_muscles