Sherlock stood on a step stool in front of the bathroom mirror examining his mouth. The tooth (Number 6, bottom left) was getting looser, and now there was blood coming from it. He wiggled it a bit and he could see another tooth growing underneath it.
He remembered how painful it was just to eat breakfast. With every chew of his toast his tooth hurt more and more.

"Sherlock, hurry up! You've been in there all morning!"

"Oh shut it, Mycroft!" Sherlock said taking his hand away from his mouth so he could talk properly. Taking one last look at his tooth Sherlock hopped off the stool and unlocked the door.

"About time! I've been waiting over ten minutes! What were you doing in there?"

"None of your business!" And with that, Sherlock hurried out of the bathroom and into his room to gather his things for school.

"What did you bring for lunch?" John asked Sherlock during their lunch break. "I've got a PB&J sandwich, what do you got?"

"A Peanut Butter and Banana sandwich. Wanna trade?"

"Sure!"

After switching sandwiches, Sherlock bit into the sandwich hitting a soft banana piece, "OW!"

"Lock, what's wrong?"

"I- I don't know...It usually only hurts when I eat something hard..." Sherlock opened his mouth and touched his tooth, "It's even more wiggly!"

"M-Maybe we should tell someone..."

"No! They'll pull it out!"

"Okay...Can I at least look at it?"

Sherlock considered it for a moment and then opened his mouth wide for John to look inside. John looked inside Sherlock's mouth and found the tooth almost immediately. John gasped when he saw red saliva coming from the tooth.

"Sherlock, you're bleeding!"

Sherlock's eyes rose and his body went ridged. Inside his mind he was having an internal battle over whether or not to tell someone, "B- bleeding? Is it bad?"

"Well...It's only bleeding a little...C-Can I touch it?"

Sherlock felt John's tiny fingers gently brush against his tooth. Suddenly, he felt something snap; it wasn't a hurting kind of snap, but more like when you pull a loose hair from your head, or when you rip a piece of grass in half from top to bottom.

"Wh't h'ppen?!" Sherlock asked as he kept his mouth open. He looked at John who had a look of horror written all over his face.

"I- I DIDN'T MEAN IT! I swear I only touched it a little!" John said with tiny tears slowly building in his eyes.

"J-John..."

Sherlock looked down and slowly closed is mouth. Sitting in John's hand was a small tooth covered in blood. Sherlock stared at the tooth with wide eyes. He reached out and took the tooth in between his thumb and index finger. He brought the tooth up to his face and looked it over.

After inspecting the tooth, he put a finger in his mouth and felt the place where the tooth once was. He could feel the bigger tooth just peeping over from his gums. When he took his finger out there was a small trace of blood on it.

"MR. MATTHEWS!" John yelled as he stood up and raised his hand. Sherlock was too mesmerized with the small tooth in his hands to realize what John had done.

Mr. Matthews walked over to the two boys and stood behind them, "What's wrong, John?"

"Sherlock's tooth came out! And he's bleeding!" John said as he pointed to the tooth sitting in Sherlock's hand.

Mr. Matthews bent down and looked at the tooth in Sherlock's hand. "This is your first tooth you lost Sherlock?"

Sherlock nodded as he looked up at the teacher. "Alright, here's what we're gonna do. I'll have one of the student's from Mrs. Morten's classroom take you to the bathroom. Sherlock, I want you to get a paper-towel and get it nice and wet and hold it on the spot where your tooth was until you stop bleeding, okay?"

Mr. Matthews stood up and got a small plastic cup and filled it halfway up with water, "John, while Sherlock is gone, why don't you watch over his tooth for him? We'll leave it right here at his seat so it will be here for him once he gets back. The water in the cup will help clean off the blood, alright?"

John watched as Mr. Matthews took Sherlock's hand and led him out of the classroom. Once they were gone, John stared at the cup, he wasn't going to let anything happen to Sherlock's tooth.

"MUUUUMMMMMMMMY!" Sherlock yelled once he got home.

He looked around and saw that the lights were on in his mother's study. He ran over to the french doors and moved the curtains on them to look inside. In the study, he saw his mother talking on her phone while writing something down.

Perfect! Thought Sherlock, She's no talking with anyone! The boy opened one of the french doors and walked over towards where his mother was sitting at her desk.

"Mummy look!" Sherlock said as he raised his hand that carried the tooth for his mother to see.

"Not now Sherlock, can't you see Mummy's busy?"

"But mummy! Something happened at school today! John and I were having lunch when I felt-"

"Not now Sher, why don't you go tell Mycroft about it? I think he's still in the drawing room."

Sherlock closed up his hand over his tooth. He watched as his mother turned away writing something down on a piece of paper as she listened to whoever was talking to her on the other end of the phone. Sherlock sighed. Realizing that his mother would only become more annoyed, he left and went to go find his older brother.

Mycroft, just as his mother had said, was sitting in the drawing room going over some papers. Next to him on a side table was a stack of files and papers from places and companies Sherlock had never heard of. He knew his brother would be leaving soon to go away and visit the university he would be attending, but Sherlock hadn't a clue on where the university was.

"Mycroft...Are you busy?"

Sherlock could still remember the last time he bothered his brother when he was going over stuff for school. His brother had yelled at him and threw him over his shoulder, carried him up to his room and locked him in using a chair.

Mycroft sighed as he looked up from his papers, "What is it Sherlock?"

Sherlock took a step back, he began to retreat towards the stairs, "N-Nothing, never mind."

"No, you've already gotten my attention. What do you want?" Mycroft's bored expression was soon taken over by an exhausted one. His eyes blinked owlishly as he rubbed a bit of sand out of them.

"Ummm...It's nothing really, but today in class...Ilostmyfirstooth." Sherlock stood in the doorway waiting for Mycroft to react.

Mycroft was always a mystery to Sherlock; he could never be sure how he would react. Sometimes he would be overprotective and try to parent Sherlock. Other times, he was an annoying older brother who would gladly trade Sherlock for a chocolate cake. There were times when Mycroft would take interest in the simple everyday things Sherlock did, and other times when the simple things became...Dull.

Mycroft's face went blank, he blinked once, then twice. For a full three minutes neither boy moved or made any kind reaction towards the other. Mycroft was the one who finally broke the silence.

"That's-...That's very good...*Cough* Does mother know?"

"Umm...yeah, I told her first. She was busy and told me to tell you..."

Mycroft nodded in understanding, "Yes, well, I've been told that most children place the teeth they lose under their pillows for some fairy to take in exchange for money. You may do as you wish."

The face Sherlock pulled nearly made Mycroft laugh out loud. Had it not been for the fact that Sherlock was only seven years old, Mycrof might have taken offense to it. Sherlock's face clearly screamed that he thought Mycroft was an idiot for even suggesting about some 'tooth fairy.'