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all_fours anal anal_penetration anthro anus backsack balls blue_hair bottomless clothed clothing dinosaur doggystyle duo erection felid from_behind_position genitals hair interspecies larger_male larger_penetrated larger_sub looking_back male male/male male_penetrated male_penetrating male_penetrating_male mammal muscular penetration penis power_bottom prehistoric_species reptile scalie service_top sex size_difference small_top_big_bottom smaller_male submissive syrinoth tail tail_grapple tongue tongue_out