Simon's POV.

Why does Alvin always have to be so stubborn? Why can't he be like sweet innocent little Theodore right there? Why did he have to switch his book report with mine? How come at lunch he took my glasses off and put them where I couldn't find them just to look cool in front of his friends? Why does Alvin have to be my brother? Simon pondered these questions as they all ran through his head. He didn't know why his brother always acted like a jerk. He just wished that Alvin would disappear and not come back until he was ready for him. Theodore probably never felt the way he did about Alvin, except for the pranks of course. He also wondered why the chipettes had to go to New York City with the Pemberton triplets for one week, because they were visiting their family since they hadn't seen them in three years straight. The triplets would of invited the chipmunks, but they said only girls could go on the trip, and that one day both boys and girls could go together to New York with them. They were very lucky to be billionaires. But he also thought they were a little spoiled since they could buy whatever they wanted whenever they wanted. They rarely listened to adults, and the only one Simon thought was really nice was Jenny. Jennifer and Jenna were always fighting wherever they wanted. Simon absolutely HATED Jenna because of what she did the first day that they were there. Simon thought that Jenna was worst than Alvin, and he was sort of glad that they were gone. He also sort of missed Jennifer because whenever Jeannette was too busy, Jennifer would help him with things that needed two people to completed. Now he would have to do all his experiments and projects on his own until they both came back. Jennifer used to also help Theodore bake cookies and play baseball with Alvin. She was fun to be around except for the fact that she was extremely shy and didn't have any friends besides the chipmunks and chipettes.

Just as Simon was falling asleep thinking about Jeannette, whom he liked very much although nobody else knew, Alvin shined a flashlight in his face.

"Hey Simon, you know that project you've been working on for no apparent reason?"

"There is a reason for that project Alvin. It's a time machine."

"Well, I think I broke it by accident."

"Alvin! You know you're not allowed in my lab!"

"I know, but it's fizzing and stuff. I thought you should come check it out." Simon sighed and reached for his glasses but to his astonishment, they weren't there.

"Alright Alvin, what'd you do to my glasses?"

"I accidently broke those too. Sorry." Alvin said sorry as if he didn't even care that he had broken Simon's glasses, and wasn't gonna care no matter what he did to him. Simon sighed dramatically then pulled Alvin in front of him and told him to lead him toward the basement where his lab was. Alvin did as he was told and finally showed Simon what damage had been done. He squinted at them until Alvin handed him some glasses that had a few cracks in them.

"Hey, it's better than nothing Simon." Simon continues glaring at Alvin until Alvin pointed at the machine again.

"What's this button do Simon?"

"Don't touch anything Alvi-" All of a sudden, the world went black for the both of them and they hit the ground hard.

Alvin's POV

When Alvin woke up the next morning, he saw he was in his bed as if nothing had happened the day before. Then he noticed something that alarmed him greatly. He was four inches taller than yesterday and everything he saw was blurry, no matter how much he squinted. Don't tell me I'm nerdy Simon! I'm going to die if I see myself in Simon's body when I get up! He put his feet over the floor then ran to the mirror. He gasped when he saw Simon's face looking back at him. Then he ran over to what looked like his bed and shook whoever was in it. He hoped it wasn't Simon. He would die if Simon was in his handsome body. Then he spotted Simon's glasses lying next to his pillow then picked them up and put them on. Wow, it must be terrible having to wear glasses, he thought to himself. Then he shook his body until it groaned and sat up in bed. Then he reached next to his pillow for something until he realized it wasn't there.

"Wha- what happened Alvin? I feel like I grew down. And my voice—my voice is higher than yesterday! Oh my goodness!" Alvin's body ran toward the mirror and looked at it then his eyes went wide.

"Are you—are you me, and I'm you?"

"Yes Simon, now figure out a answer to this problem as soon as possible or else I'll-"

"Alvin, the girls get back in six days. What do we do?"

"I said, figure out an answer to this problem!"

"Well, I can't. You know why? I think some of my brain molecu-, molecules got stuck in your brain. You're gonna have to figure this out yourself. Maybe you can call Jennifer or Jeannette…."

"Yeah! They can help me get back to normal! Thanks Simon."

"Oh and, don't tell Theodore that we switched minds or don't tell Dave either. Don't even tell your fans, friends, or girlfriends."

"Okay, okay, I promise not to tell anyone." Alvin and Simon both thought that their new heights might be a problem. Since Alvin wasn't used to Simon's height, he bumped his head on the shelf when he used to be able to walk right under it with no problem. Simon on the other hand, was used to having to duck under the shelf above their clothes so he was surprised when he realized his head didn't even reach the top yet. Alvin still had another three or four inches to grow before his head could reach the top.

Theodore's POV

Breakfast was also another problem. Simon usually ate politely, but this morning weirdly he ate sloppily while Alvin, the messy one, ate using manners. After breakfast, Theodore asked Simon if he wanted to play checkers with him, and Simon had told him to find someone else to play with. Then he asked Alvin and he was expecting Alvin to say no as well. But to his surprise, he had said yes. Every morning after they played a game together, (when there wasn't any school of course) Alvin played baseball with his friends, and Theodore, and sometimes Simon, always went with him. They usually always won their games and Alvin usually was the best on his team, but today he looked as if he had lost all his memory or something, because he missed the ball every time they threw it at him. Simon looked very into the game and got mad every time one of Alvin's teammates missed the ball. This was very strange indeed, since whenever Simon didn't really pay attention to the game. He usually read a book or did something that smart people like to do. He probably didn't even know the rules to baseball.

"Simon, why are you so into the game? You never even played a real game like this with your friends. I thought you didn't know how to play. That's what you told me last time but told me not to tell Alvin because he would never stop making fun of you if you told him that. You also said you don't know how to play any sport except for basketball and soccer, and you're not even good at that, but I saw you watching football and basketball earlier, is anything wrong that I don't know about?"

"Um, uh, well, um, you see," Alvin began stuttering inside of Simon's body. He hadn't known that Simon didn't know how to play any sports! He would have gladly taught him if he wanted to learn to play good at at least one sport. He was devastated to think that Simon thought he was mean enough to not teach him how to play one little sport.

"Um, Simon, you haven't answered my question yet."

"Well, I'm just nervous about my uh, P.E. grade, that's all."

"Oh Simon, you're gonna get at least an B minus, I mean, you did pass the test about safety that we did on a piece of paper, even though you did get a C minus on the mile run test and an A minus on the basketball test to see if we could shoot ten hoops in one minute, and you shot five out of ten. A B is not a bad grade." Alvin got even more surprised at this. His own brother was getting a B minus or lowers in gym class and he didn't even know about it! He didn't know Simon kept so many secrets from him! And for good reason too, he always laughed at his brother whenever he missed a ball in baseball or ran slower than the rest of the class. He was always so mean to his brother, but he didn't know that Simon cared about the laughing. He never cared about anyone else's feelings as Brittany had said one time when she had cut her knee and he had said he didn't' care about her well-being.

"Yes it is." He said back, knowing that's what his brother would say. Theodore didn't say anything for the rest of the game and neither did Alvin. Simon came back in Alvin's body completely humiliated because he had caused Alvin's team to lose the whole game twenty to four. He walked with his arms at his sides and his head hanging at the ground. Then Theodore started wondering what was wrong with Alvin. Alvin had never caused the team to lose any game before.

"Are you okay Alvin? You've never lost anything like this before. Are you tired or worried about something?"

"No Theodore, I'm just fine. Can you leave me alone now?" Then Simon started understanding why Alvin was always so mean. He was always being tempted by everything that came in sight, and right now he felt like causing some trouble, so he waited until they got inside the house to grab Simon's glasses and run around the house with them laughing as he held them high up in the air triumphantly until he ran into Dave in the next room.

"Hey Dave, what's up? I was just bringing Simon his glasses because I found them on the floor right here for some reason."

"Uh huh, right. Listen Alvin, you've got to stop taking Simon's glasses off. How would you like it if he kept on taking your hat?"

"I wouldn't I guess."

"So you need to treat others the way you would want to be treated, got that Alvin?"

"Huh? Oh yeah, I understand." Alvin knew that Simon was not really paying attention to Dave. He just started walking toward his room to watch some more television.

"Uh, Simon, I thought you said after Alvin's game you would try and fix my car?"

"Oh yeah, that. Well I would but I need to-"

"You promised."

"Well, okay." This was all Alvin said before mouthing the words to Simon help me! He started running toward the door after Dave and his body.

"No Alvin, you can't come with us."

"Dave, let's let him come just this once."

"Weeelll, okay. I guess I would be okay for just this once." Dave told Alvin what was wrong with the car and he pretended to start to fix it but didn't really touch anything until Simon came by and told him what to do in his ear. They fixed it then had lunch, and then they both watched television together.

When the day ended they were both grateful because they were exhausted from having to act like each other. They both fell asleep as soon as they hit the pillow and hoped the next day was going to be better.

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