Disclaimer: I don't own TMNT or anything related…. Wish I did though

"All right you guys I'm off to bed!" Michelangelo said yawning and stretching. "Have fun doing whatever you do."

Raphael rolled his eyes at his brother and Donatello and Leonardo merely wave. Splinter opened one eye from his position on the mat and nodded to his son. Mikey was kind of ticked that his brothers and his master still had to give him consent to go to sleep! Once he got in his bed he groaned and stretched out his still stiff arm. April had just let him take off the makeshift cast that was holding it in place ever since Raph broke it. Mikey grimaced as he remembered what had happened. They were just coming back from defeating the Shredder and Mikey had cracked a lame joke that seemed to make Raph loose it and he started punching and kicking at him. When Mikey held up his hands to say that he was sorry Raph kicked him and broke his arm. Ever since then he had noticed that none of the others ever let him enter a room with Raph in it. Mikey sighed and rubbed his chest. About two days after his arm was splinted his chest started to hurt. So far he had only told Donnie who had taken some tests and was still looking at them. He had even forgotten about the devise to turn them invisible. Mikey felt very loved.

"Hey, Mikey?" speak of the devil Donnie was just outside his door.

"What? I'm trying to sleep here!" Michelangelo sighed rolling his eyes and sitting up in bed.

"Can I come in?" Donnie's voice was different somehow. Almost scared and tightened like he had been crying.

"Yah," Mikey said and Donnie opened the door and quickly came in. "What's wrong Don? You look awful."

"Thanks Mike," Donatello wiped his eyes a sure sign that he had been crying and Mikey noticed that his wrist hung at an odd angle. "Luv'ya too bro."

"Donnie what happened to your wrist?" Mikey asked getting up and going into his and Don's bathroom. For his own safety he and Don now shared a room instead of him and Raph.

"Got into a fight with Raph over who gets to use the Turtle Car to go topside," Mikey sighed and splinted Donatello's wrist.

"What's up with Raph? He broke my arm and then your wrist," Mikey finished bandaging Don's wrist and fell on his own bed his hand on his aching chest.

"Hormones?" Donnie said and a loud thump was heard with Raphael's I heard that following. Don decided to whisper to his younger brother. "Mikey, you know how your chest has been hurting? Can you come to the lab? I want to take an X-ray of your heart."

Mikey groaned into his pillow and got up. "As long as we don't have to face Raph in puberty," Raphael's growl was heard as a warning. "To the bat cave!" Mikey said pushing the button on their desk that opened up a wall that they quickly slipped into.

Donatello was already firing up the x-ray machine when Mikey got there and gestured for him to lie down.

"Ok bro," Don was just making some adjustments to his machine when a knock was heard. Don looked at Mikey who shrugged when Leonardo's voice was heard.

"Hey Don? You in there? Ever since yours and Mikey's comment about puberty Raph wants to kill me," Leo opened the door and hurriedly came in as a stray remote hit the door. "What are you doing to Mikey?" Leo asked noting that the youngest was sitting on a machine with a pained look.

"X-ray," Don shrugged and looked at Mikey who lied back down. "Mikey's been having this horrible pain in his chest since Raph broke his arm and I've been researching it for a while and I want to take an x-ray of Mike's chest cavity."

"What? Why did he only tell you?" Leo asked rubbing his head.

"Because someone would have made me sit out and would worry about me and I would have to meditate because someone blabbed to old man Splinter," Mikey said smiling at Leo. Leonardo noticed that Mikey wasn't laughing and that the smile was full of pain and let Don continue with his tests.

Leo and Mikey had fallen asleep when Donatello finally finished the calculations. Don frowned and shook Leo awake and motioned for him to follow him to the screen.

"Take a look at Mikey's heart," Leo leaned over Don's shoulder to take a better look at the screen and turned to Don.

"You know I'm color blind right?" Leo glared at the third youngest grinning turtle.

"Of course I will explain!" Don grinned as Leo rolled his eyes. "All right… where to start… ok the red area is an area well insolated… that means a lot of protection around it. Now almost all of the heart is insolated except this part which is black. Well this whole half that's black… now the black means that there is a virus in his heart… and its killing it," by the time Don had finished his speech his face was grim. "The only way of preventing this is a heart transplant… but we cant do that."

"Wait," Leo said as he watched Mikey's suddenly frail looking form. "You mean that Mikey's gonna die?"

Donatello rubbed his eyes a sure sign that he was going to cry.

"I don't know Leo… but this is the closest we've ever came to someone… well leaving us," Don couldn't stop the single tear going down his cheek.

"He's our brother and he'll never leave us!" Leo hugged Don and stared grimly at his youngest brother's sleeping form. "I promise," he whispered more to reassure himself then his brother.

Ok how did you like it? This fic was inspired by brother's bond oooh! I forget the title! Oh well… plz review!