You're pretending, to get Trish restored

You can’t actually believe that the real Trish wants to be you instead of herself, but you decide to humor the fake one, Jessica wearing the Trish suit made from Trish and fitted with her memories, so she’ll take off the Trish skin and restore it to being Trish. And she does — once she’s used Trish’s phone to call the Jessica clone and order her to come over to Trish’s house at once. “You might find yourself in trouble for sneaking out, Jessica,” she says, walking to Trish’s bedroom to disrobe, peel off Trish, and restore her. At first you’re puzzled that she called you Jessica, but then you realize that she intends you to be Jessica and face any consequences.

Soon the Trish suit is in Trish’s bed, zipped up and under the covers up to its still-deflated neck, and gradually changing from being the ultimate disguise to being Trish. The clothes worn by the fake Trish are in Trish’s clothes hamper, and Jessica, herself again, is wearing one of Trish’s bathrobes.

It takes perhaps five minutes from the Trish suit to become Trish again and wake up. Explaining to Trish what’s happened to her is a lot more difficult. It helps when after the doorbell rings you usher the Jessica clone into Trish’s bedroom, and on the original Jessica’s command the clone pops out her zipper pull, gives it a yank, and collapses into a Jessica suit.