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2015 absurd_res anthro anus big_butt butt dinosaur duo english_text female genitals hi_res huge_butt human imminent_sex ladonna larger_female lips looking_at_viewer looking_back macro male mammal mrmadhead nude prehistoric_species presenting presenting_hindquarters puffy_anus raised_tail rear_view reptile saurischian scalie size_difference smaller_male solo_focus tail text theropod thick_bottom_lip tyrannosaurid tyrannosauroid tyrannosaurus tyrannosaurus_rex vulva