Lydia had survived two sessions in a row with Dr. Mercies and earned her place in her own unique mold. So the good doctor decided that she now deserved the privilege to make molds for others. He fucked her ass once again to open it up a bit, instructed her to create a mold in the Arts and Crafts area of her cell, and then gave her 3 huge chocolate cake batter enemas. She squirted them all out, and they put the cake in the oven to bake.