Rule 34 Dev - 2022 4:3 ambiguous_gender amphibian antennae_(anatomy) collar duo eyestalks feral frog gastropod gastropod_shell grey_background greyscale hi_res hole_(anatomy) looking_at_another lying mantle mollusk mollusk_shell monochrome on_back quadruped rex_(star_rifle) shell simple_background snail star_rifle|13119440496