A/n This chapter is also a bit different then others as they are growing up now and the tone changes as characters develop.

Cas had never been to school before and he was excited to finally get to see the place where Dean spent most of his time. Dean couldn't honestly see the reason Cas would want to tag along to the boringest place on earth, but Cas was a bit weird like that, and Dean supposed high school would be fun to anyone who had never been there before. Sam had been excited when starting his first day at high school, but everyone knew Sam was a bit of a nerd, and Dean supposed Cas was a little bit of one as well, as he could recall an extensive amount of facts, but every now and then Dean would be surprised at just the part where his knowledge would end.

Earlier that day

"Dean where are you going?" asked Cas.

"Where I go almost everyday," responded Dean "to the most boring place on earth high school."

"Im curious, you go there everyday, and I've never been. I wish to visit your high school, see why you spend so much time there."

"You sure?" confirmed dean "It's really boring."

"Im sure; I will accompany you for the day, and see how boring high school really is."

Cas reverted into incognito human mode, posing as a new student, which elected curious whispers from all the current students, causing them to congregate in groups; whispering behind there hands as who the new kid was; and how he knew the most popular guy in school.

"Who's your new friend?" asked a curios girl Dean knew as Mindy.

"I'm Castiel." responded Cas to a question not directed at him, and extending his hand in a way of greeting he had picked up from Dean.

"Nice to meet you Castiel" responded Mindy, shaking the offered hand and kissing his cheek. This caused Cas to blush profoundly, as he had never been kissed on the cheek before.

"Aw, ain't he adorable?" gushed Mindy.

"Hey! Anna! Come over and see the new kid, he's the most adorable thing I've ever seen."

Soon a big group of girls had congregated around a confused and blushing Castiel.

Castiel didn't really like the attention and was starting to get flustered, he looked around for Dean, to try to save him from the group of girls, but Dean was gone, he was no where to be seen.

In fact Dean had stormed off a while ago, when Mindy had called Anna over, Dean had, had enough. When Mindy kissed Castiel on the cheek, it caused feelings to rise in Dean that confused Dean greatly. So instead of facing them, he instead elected to walk off and start brooding in somewhere distant from Cas and his group of female admirers.

It took a while, but Cas disentangled himself from the group, and retreated to a safe corner, and went to find Dean. Cas didn't find Dean until the first siren rang, and then he wasn't aloud to talk to him as they had to go to class.

"Okay class we've got a new kid and Ill'd like everyone to be nice to him. Castiel why don't you introduce yourself to the class?" twittered the teacher, in the usual script teachers said whenever a new student was introduced in to her class.

Cas stood up in front of the class, and looked like a dear caught in the head lights. He didn't say a word, and a awkward silence issued, the class waiting for Castiel to say something, but it was as if someone had glued Castiel's mouth shut, and not a word was uttered.

"It's okay Castiel you don't have to introduce yourself." said the teacher after a few awkward minutes of expectant waiting for Cas to say something.

"Why don't you just go sit down."

Cas walked down the isle ignoring the calls of "Cas sit next to me" from some of the girls he had previously met.

Instead he found Dean and issued a sigh as he sat down, finally escaping those many stares he had been subjected to since walking in the door. Cas decided that high school was a lot harder than he previously thought, and he wondered how Dean could deal with it all the time.

Cas looked over at Dean to find out what how he was doing with this whole high school experience, and it seemed Dean was harbouring a solemn look of broodiness, crossing he's arms and reclining back on the seat like he had not a care in the world, but Cas knew Dean well enough to tell there was something underlining that, that Cas couldn't pinpoint it was almost like anger but not quite, Cas wondered why Dean was angry and if he was angry at him.

Dean always knew Cas was smart, but before now he never realised how smart Cas really was. Throughout the day Cas got every question right, and when he did Dean swelled with pride. It seemed Cas knew everything, until they got to work shop, which Cas was absolutely horrible at, whatever he tried to built immediately fell apart, so Dean helped him when the teacher wasn't looking.

As Dean was realigning the piece of metal that Cas had somehow twisted around, Cas breached the topic that had been bothering him all morning.

"Dean, are you mad at me?" Castiel hesitantly asked, fiddling with a piece of wood.

"Why would you think that?" asked Dean confused.

"Well you haven't been talking as much and I've noticed you have been silently brooding."

"I haven't been brooding." exclaimed Dean a bit too loudly which caused a few curious stares.

"What I meant," said Dean more quietly "is that I've never once in my life brooded and today is no exception."

"Well why have you been acting like this then?" asked Cas confused.

"I dont know what your talking about." said Dean avoidantly "I think its all in your head, I'm not behaving any differently then usual."

This statement caused Cas to stare down Dean, to see if he had in fact been imagining the unusual behaviour Dean had been exhibiting, and in turn caused Dean to squirm under the powerful stare.

"No," Cas decided "he had not been imagining it, something was off with Dean and he was going to get to the bottom of it before the day was out."