Author's Note: Not a shipping Fanfiction. This is pure Clean Crack.
Armin's eyes widened as he realized that he ate Bertholdt. The blonde boy felt like he was going to puke his guts out. But, before he could, him and Eren heard a soft high pitched voice. "Hello…" the voice said, it echoing.
"Huh?!" Eren and Armin both gasped as Jean dropped his water bottle that he was drinking from. Connie and Sasha stopped talking, listening to see if the voice would talk again.
"Hello?" the voice asked echoing off the…. walls? Whatever the voice was, it was freaky and Armin started to panic.
"Uh… Armin?" Eren asked looking into Armin's wide blue eyes. "I think it's coming from you…"
"Well of course it is!" the high pitched voice yelled as Armin blinked feeling something weird in his stomach.
Jean got up and pointed to Armin. "It is a germ! I knew it!" he yelled as he rushed out of the room to get something called Thieves to keep himself from getting sick.
"Um.. do you have a name?" Connie asked, getting the most Stupidest Question of The Year award. Everyone looked at Connie like he was stupid.
"Yup!" the voice yelled happily. "Bertholdt!" he cheered as Armin felt like someone was bouncing in his stomach. Armin was about to say something until he felt Eren press his ear against the boys stomach.
"Okay, so, are you alive?" the Attack Titan Shifter asked as he heard a high pitched version of Bertholdt's voice answer…
"Yup!" he squealed. Why was he so happy?! It didn't make any sense. Bertholdt was always sad or, calm and didn't really say the word 'yup'.
"I want to ask a question!" Sasha yelled pushing Eren out of the way who let out a yelp. The burnette knelt down and asked… "Why are you inside of Armin?" Sasha asked as Armin just sagged his shoulders letting out a sigh.
"Uh… Because he ate me. Duh!" Bertholdt stated as Connie's eyes widened almost forgetting that Armin was the new Colossus Titan. Maybe he could kill a Titan for once.
Connie got up and bumped into Sasha. "How long are you going to be inside of Armin?" he asked pointing at Armin, though, it just occurred to him that Bertholdt couldn't see him. Except if he wanted to climb up to his eyeball.
"Forever! I'll be 'helping' Armin and giving him 'advice'!" the former Titan Shifter cheered as his voice echoed. Armin paled, Eren fainted, Connie was trying hard not to laugh, and Sasha just looked worried.
"Forever?!" they all yelled as they could all heard Bertholdt's tiny laugh. Yes. One of his ways of getting revenge. And, it was working perfectly!
Author's Note: I thought about this XD And, since I have a twisted weird mind, I did it. LoL