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2025 alien alien_humanoid anus back_muscles backsack balls barely_visible_genitalia barely_visible_penis big_butt black_body black_skin butt english_description genitals humanoid long_tongue lying male marvel marvel_rivals morinetsu muscular muscular_arms muscular_humanoid muscular_male not_furry on_front open_mouth penis perineum pink_anus rear_view sharp_teeth solo symbiote teeth thick_thighs tongue venom_(marvel)