"Not telling," she says.

Jessica coyly teases you and says "Not telling" before sticking out her tongue at you. You honestly can't tell if she's Jessica or someone wearing Jessica as a costume. Her mannerisms, her reactions, everything has seemed picture perfect to you so far. If that brown pen is really as powerful as she claims, could it have provided an imposter with the memories necessary to pull off such a perfect impersonation?

Your girlfriend can see your confusion and smiles. She suggests that you two play a game. You will stay as Trish, visiting for the night, and pretend to be her. You're not allowed to cheat so she's not going to let you use the brown pen. The aim is to trick Jessica's family into thinking that you're truly who you appear to be and your goal is to figure out if Jessica is actually herself and not someone wearing an elaborate Jessica costume created using the C-set.

As much as you'd like to find out if Jessica is who she seems to be, there doesn't seem to be anyway to check definitively. If the skinsuit's seam will only open to your mental commands, there's no way to forcibly remove it from someone else. You decide to play along. After all, it does seem like an interesting idea and Trish has always intrigued you. You're curious to see if you can pull off impersonating your oldest friend.