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anthro anthro_dominating_human covering covering_mouth dera_kimidori dominant dominant_anthro dominant_male double_penetration dragon entwined_tails group group_sex horn human human_on_anthro interspecies larger_anthro larger_dom larger_male lying male male/male mammal monochrome muscular muscular_anthro muscular_male mythological_creature mythological_scalie mythology on_back penetration scalie sex size_difference smaller_human smaller_male submissive submissive_human submissive_male tail tail_coil text threesome trio