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5_fingers alien anthro anus butt claws elemental_creature elemental_humanoid fingers ftl ftl:_faster_than_light genitals hi_res humanoid knot low-angle_view lying male mineral_fauna mineral_humanoid musclegut muscular muscular_male noir_young not_furry on_back penis presenting presenting_anus presenting_hindquarters presenting_penis red_eyes rock rock_creature rock_humanoid rockman_(species)solo spread_anus spread_butt spread_legs spreading unusual_anatomy unusual_genitalia unusual_penis xarian_monsvik