Mewtwo Milker: Colour Sketch

Just fleshing out the atmosphere and machinery. I want to make the cum milker look like a transparent gel material, making up the shape of a chamber with multiple sphincters inside to simulate a vagina/anus for maximum pleasure! uwu

Also I wonder if Mewtwo should be restrained or have his limbs free? Should he be willing or unwilling etc.? Tell me what you think~