Cas knew, just like so many other times that this should be weird. The fact that Sam had kissed him, that Dean hadn't gotten mad. But what should have been the weirdest was that all Cas could think about was Dean.

During the whole kiss he had thought about his best friend. Still even on his way to his lunch table he still was. Rethinking every encounter they'd ever had. Maybe things should seem weird, they were supposed to.

Perhaps Cas and Dean were wrong from the beginning.

-Friends shouldn't skinny dip

-Friends shouldn't have sex in the same bed

-Friends shouldn't watch porn together

-Friends shouldn't touch….

What was that, that they'd shared?

Dean hadn't given a shit after they'd left Misha's that night. Cas really just thought Dean would drop him off at home. He might not be mad but that didn't mean he'd want to be around Cas after that show. Or worse Dean would be sporting a hard on from hell, and Cas didn't want to be around if he didn't get it out before it got to painful.

Instead they pulled up to dean house, Dean jumping straight out of that car.

"Come on"

Was all he offered a very confused Cas. So he simply followed him in. Dean heading straight up the stairs to his room. Only stopping half way up to fix Cas with a 'what the fuck do you think you're doing' look.

"Thought I'd just say hey to Sam." Cas offered.

Dean simply leveled Cas with another looked and making him follow obediently. Once they were in Deans rooms Dean half crawled under his bed. Throwing out old shirts, dirty shocks and one very green….something.

"What are you doing?" Cas asked with honest curiosity.

Dean didn't answer at first just continuing to dig under the bed. Just when Cas thought maybe he should ask again Dean's head popped out from under the bed.

"Got it!" He shouted victoriously.

"Got what?" This was getting old.

Dean pulled out a DVD case for Cas to see, but he couldn't tell what the movie was. Dean went straight to his TV popping the movie in. It took all of five seconds for Cas to figure out what it was.

"You're watching porn?" Cas deadpanned. This too surely should of surprised him.

"No, we are." Dean answered with a smile.

"Why?"

"Because man, I bet you've never even busted your nut to porn. " Hell I bet you've never even done it around a naked woman."

Dean had said it all as a joke. Cas could tell he didn't mean any malice by it. It hadn't stopped him face for turning ten shades of red. He simply looked away from Dean's stare. Scratching his neck and wishing this was over.

"Cas?" Dean leaned over his shoulder, where Cas now had his Back to Dean.

"Man, tell me you've masturbated" Dean's tone laced with no belief.

Cas turned his head farther from Dean, not meeting his eye.

"Not even once?" Now Dean was in awe.

"Just doin a little seed spilling?"

"I've never had the occasion." Was Cas' simple response.

Cas knew his face was red and he'd never felt this embarrassed and to be honest, horny.

The porn was still going on in the background.

"See, now you're getting it." Dean's voice broke through Cas' haze.

Cas followed his line of sight to Cas' obvious tent before watching him sit down on his bed. Then scooting up the bed and propping up against the head board.

"Your staying?" If Cas' voice had shook a little when he'd asked, no one said anything.

Why would Dean want to share such a private moment with Cas?

"We don't HAVE to do anything Cas" We could just, you know watch" Dean offered.

That did not sound like a good idea to Cas. He was harder then he'd ever been and he felt closed then he'd ever had to Dean. This must just be what Dean letting his walls down looked like.

So Cas sat down against the head board with his best friend. Just to watch a movie.

"Hey, calm down man. No need to be so stiff."

Cas ignored the poorly made joke. Dean placed a hand high on Cas' thigh to relax him, brushing Cas' now painful erection in the process. He quickly pulled his hand back but did not seem disgusted, as Cas would have thought.

Just pulled away and looked right at Cas, before looking back at the screen with out a word. Cas watched as a new scene started up. Try to concentrate more on what was going on in the movie and not in Dean's bed.

"This is complicated" He broke after some time.

"HmmmH" Was Dean's only response.

Cas was pretty sure Dean wasn't listening, but he went on anyway.

"If the pizza man truly love the baby sitter, why does he keep smacking he ass?" Why she's been bad?"

Cas asked with honest curiosity in his voice.

"Okay!"

Dean shouted, pulling his hand from his crotch, where Cas hadn't even notes he'd been rubbing himself.

"Time for Dean's rules for watching porn"

Cas simply looked at Dean.

"One, you never watch porn in a room full of guys." Dean stated while gesturing with his hand.

"But Dean" Cas broke in " That's exactly what we're doing"

"No, we're Dean and Cas" Dean stated while gesturing between the two. "I've seen your dick before." He ended like that explained it all.

"Oh" Was all Cas shyly answered.

"Two" Dean carried on "We don't talk about porn." Well with anyone else" He quickly threw in.

Cas just nodded, it seemed he was the expectation to many in not all of Dean rules.

"Three, volume will get you caught, so just turn it off." He gestured to the muted TV.

"I see" said Cas. "Now that I know the rules what do we do?"

Cas knew his voice was cracking but hell was he nervous. Maybe that should have been weird.

"Oh come on Cas" Dean levied Cas with a look.

"What you need me to show you?" He asked sarcastically.

Cas could have been embarrassed by this, but Dean had started this so why should he get to act like Cas was being weird. So instead he just stared at Dean an till the boy finally let out a deep huff.

That's when Cas realized it was not Dean huffing at all, but Jo.