Disclaimer: I do not own Shingeki no Kyojin or anything else.
Day 24: Petra
It was Christmas Eve, and food had to be prepared for Christmas dinner. Sasha volunteered immediately, and Petra decided to help. The pair chose to make ham for the main dish, with several side dishes, including a salad, potatoes, cranberry sauce, and a few others. Sasha began preparing the ham and potatoes, while Petra diced up vegetables to put in the salad. Once the food was prepared and some just needed to be cooked the next day, the pair put it aside and joined their squadmates, who were playing some games in a large room, besides Levi, who was cleaning a cabinet and ignoring everyone else.
When Sasha and Petra showed up, they were playing a trivia game, which Armin was of course winning. When it became obvious no one would be able to beat him, they decided to play charades instead. Sasha had the record of how long it took people to guess what she was because Jean kept suggesting potatoes and other foods. As payback, Sasha suggested he was being a horse when it was his turn, while he was just standing there, still deciding what he was going to act out. After that, Jean stopped suggesting foods when it was her turn.
Petra grabbed a broom and pretended to be Levi when it was her turn. Eren guessed correctly after about five seconds, but Levi turned away from the cabinet when he heard the brunette shout, "Levi" and everyone else began laughing.
"What is it, brat?" demanded Levi, which only made everyone else laugh harder. Petra had already put the broom back, so Levi did not believe Eren's explanation that she was pretending to be him. Eventually Petra admitted he was telling the truth when Levi threatened Eren with stable duty.
From then on, Levi watched the group to make sure no one acted like him again.
Armin was next and he pretended to be Commander Erwin, which led to everyone pretending to be someone else in the Survey Corps. Sasha pretended to be Hanji right when the scientist was walking by, and Hanji thought Sasha actually had learned something important about Titans and promptly dragged her off to discuss it. When Sasha eventually returned a few minutes later after explaining about the game, and a disappointed Hanji left to plan more experiments, it was Eren's turn.
Eren was pretending to be the Rogue Titan, until Jean said Eren was acting the same as he usually did, at which point a fist fight broke out and then Eren actually did turn into his Titan form. Eren was holding Jean over his Titan form's mouth, pretending he was going to drop him, when Commander Erwin walked into the room.
"What is going on in here?!" Commander Erwin demanded, and Eren put Jean back on the ground.
"Eh heh, sorry," Eren tried to say, though it came out as more of a growl.
Hanji, who heard the Titan growl, ran into the room.
Petra tried to explain what had happened while Mikasa and Armin used 3DMG to reach the Rogue Titan's neck and cut Eren out.