This might seem like a bit of an angsty chapter, but I sat down and it just flowed, so... here it is! I hope you like it, especially the memory at the beginning, added because I promised at the end of the last chapter to continue that scene. I know this has been a while in coming – if anyone can persuade my teachers that I don't need to be killed by the sheer quantity of homework they're setting, I would be very grateful. Please review so that I know what you think!

Disclaimer: I don't own Supernatural or any of the characters, I'm just a fangirl impatiently counting down to the start of season 9...

A huge thank-you to my incredible beta rdmnss.

Dean wrapped his arms around Cas, his hands running down his back over that ridiculous trenchcoat, and moaned as Cas returned the kiss with fervour, tongues battling in a way that they never had before. Amazed that Cas was actually responding positively to his actions, Dean took it one step further as he moved his hands to Castiel's front and started to unbutton his trenchcoat. He managed to pop out two out of the five buttons before Cas broke the kiss and sat back, cheeks flushed but a confused expression on his face.

"What are you doing, Dean?" He asked.

Dean moved forward again, running one hand over Cas's chest as he reached for a third button.

"You're wearin' too many clothes," He purred, smirking seductively up at Cas."You're going to boil in this coat."

Cas tilted his head adorably to one side, watching as Dean popped open a third button and slowly trailed his hand down to the fourth.

"The temperature is far too low for me to 'boil', Dean, that would take the sort of heat that could never be replicated in a domestic setting – "

Trying to shut Cas up, Dean moved his head up and captured Cas's lips again whilst undoing the fourth button and finally reaching the fifth. Smirking into the kiss, he yanked open the final button with no real finesse and instantly plunged his hands inside, feeling the warmth radiating from Cas from under his suit.

Cas let out a small moan at the sensation, and the sound went straight to Dean's groin, causing his breath to hitch before he growled and pushed Cas down into the sofa, hovering over him as he plundered his mouth with the desperation of a dying man.

Cas tensed slightly below him, but didn't break the kiss – instead, the hesitantly moved his own hands up and ran them over Dean's back, massaging small circles through the faded leather. Dean hummed in appreciation, moving into the touch, and was just allowing himself to sink into the throes of pleasure when Cas broke the kiss and moved his head to one side, removing his arms from Dean's back and instead using them to push Dean off him so that he could sit up.

"I'm sorry, Dean. I am not accustomed enough to this to take the physical side of our relationship any further at this stage."

Feeling guilt start to wrap around his heart, Dean nodded, looking at Cas with a slightly wary expression.

"Do not worry. That was very much enjoyable and you did not take things too far. But I feel that that is an appropriate maximum level of intimacy for this point in our relationship."

Scowling, Dean snapped out of the memory at the sound of a car door next to his head. Realising that he had, once again, started daydreaming while at college, he sighed and pulled himself out from under the car, sitting up as his boss, Bobby, rounded the corner.

"You almost done, there, boy? What's takin' you so long? I need that car finished by the end of today, and if you have to stay back late to finish her, so be it!"

Dean nodded apologetically. "Sorry boss. I just need to do some final work on the engine and then clean her up, and she'll be good as new."

The man nodded. "Just see that it gets done. Detective Mills is a very good friend of mine, and I would hate to see her disappointed."

He turned and left, and Dean sighed again, reaching over to pop open the bonnet to have a final look at the engine.

It wasn't long before his thoughts once again turned to that day with Cas. The feel of him under him, the way that even though he hadn't really known what to do he responded anyway... and the way that he had pulled back and given Dean the biggest case of blue balls he had ever had in his life, so bad that he had had to excuse himself to the bathroom for fifteen minutes so that he didn't end up jumping Cas and ruining everything. Not that trying to remain silent in his boyfriend's bathroom was much of a better situation.

Dean entirely respected the fact that Cas was inexperienced and wanted to go slow. In a way, he agreed that that was the best way to proceed here. But Dean had never been in a relationship before, and he wasn't used to the whole 'delayed gratification' business – it was seriously hard for him to remain so restrained, especially when Cas responded even when he wasn't sure about something. Dean was extremely happy with Cas, happier than he had perhaps ever been, but he couldn't help but wish sometimes that Cas was a little less... restrained about these things.

It didn't help that in the week since then, the two of them had barely seen each other. They had exchanged numerous emails, and one night they had gone out for dinner with Sam and Jess at the Roadhouse, but afterwards Cas had said he needed to go straight home to work on his art project and he hadn't even invited Dean in – Dean knew that art was important to Cas, and he respected how much work being a scholarship student at a prestigious Academy must be, but still. He wanted to see his boyfriend. And the fact that they had barely been able to do anything since that day was making Dean feel like Cas was avoiding him, which really hurt.

Trying to put those thoughts out of his mind, Dean concentrated on making the final adjustments on Detective Mills' car's engine. Of course, he had to be assigned to his boss' girlfriend's car when he wasn't in the right frame of mind to work. That was how his life was working at the moment. Rolling his eyes, Dean stepped back and smacked his head against the bonnet of the car.

"Sonova..."

"Dean?"

His head throbbing, Dean spun around with a glare to see Sam standing behind him looking concerned.

"Sammy? What are you doin' here?" Dean winced as he spoke, wandering over to the mini fridge in the corner of the garage area – thank God for his boss's supply of icepacks used to keep the beer cool.

Sam looked concerned. "Are you alright?" He asked, avoiding Dean's question.

Dean directed the strongest bitchface he could in Sam's direction, slapping an icepack onto his throbbing head and collapsing onto an upturned bucket.

"Yes, I'm clearly just perfect right now. Bitch."

"Jerk," Sammy replied instantly, wandering over and grabbing the icepack. He pressed it more gently against Dean's head and Dean sighed, leaning back against the garage wall.

"Really though, Sammy, what are you doin' here?"

"It's Sam," Sam intoned. "I wanted to ask you if you could give me a lift to the Academy Art exhibition next week. Jess'll be too busy organising everything to pick me up, and I assumed you were going anyway, because Cas's art'll be on display."

Dean blinked. "The exhibition's next week?"

Sam looked shocked. "Well, yeah – didn't you wonder why your boyfriend's been so busy?"

Dean shrugged, hissing as the movement made Sam's hand bump against his bruised head. "Watch it! And well, I know he's been busy, but I kinda thought he just didn't wanna see me."

Sam frowned. "Why? The guy's smitten – before this, you were practically spending every minute you could together."

"He is not smitten," Dean commented, but he couldn't deny that a warm feeling went through him at the thought. "Plus, we weren't spendin' that much time together, we're both too busy for that. I kinda screwed up last week anyway; we haven't spoken that much since."

"What did you do?"

Trust Sam to have the subtlety of a blunt knife.

"It's none of your business." Dean pushed the icepack away and stood up, ignoring the way that the world spun for a second, and walked towards the hose.

"I can't help if you don't tell me." Sam looked at Dean slightly worriedly and put the icepack away in the fridge.

"You can't help anyway. Not unless you have some kinda magic potion that can turn a guy's libido off."

Sam gasped. "Please tell me you didn't try to force Cas into sex."

"Of course not!" Dean snapped. "I would never do anythin' like that! I'm not a rapist! No, I'm just frustrated and Cas was sending mixed signals, and now he's ignorin' me, and it freakin' sucks. Sometimes I wish the guy was more normal."

"You don't mean that."

Grabbing the hose and aiming it at the car, Dean shrugged.

"Well, maybe I don't. But it would make life a lot easier."

Chuckling slightly, Sam wandered over to Dean.

"So basically, you've got blue balls because Cas won't just fall into bed with you, and he's panicking because he's stressed about his art and you're not talking to him very much so he thinks he's done something wrong. You two make a right pair of idiots!" Sam seemed very amused by the whole situation.

"What do you mean he thinks he's done somethin' wrong? Have you been talkin' to him?" A hint of jealousy crept into Dean's voice.

Sam laughed. "Oh, stop sounding so jealous Dean, I have a girlfriend. Cas is all yours. But yes, I've been talking to him, he's my friend. He emailed me a few days ago all worried about why you were acting so 'distant' and not talking to him very much. I told him not to worry about it, it was nothing, but he keeps asking if you're alright and if he's done something wrong."

"Wait, he thinks I'm actin' distant? He's the one who didn't bother to email me!"

"Only because you didn't email him! Maybe one of you needs to grow up and take some initiative here!"

Dean paused, beginning to sense the logic. Not that he would ever admit his brother was right.

"Fine. Bitch."

"Jerk."

There was a brief moment of silence, only broken by the sound of the hose as Dean washed the last few specks of dirt off the car.

"So, can you take me to the exhibition next week then?"

Dean turned to look at Sam. "Yeah, fine. I'll text you the details nearer the time. Now shoo, I need to finish this car or the boss'll have my ass."

Sam grinned. "Now, we couldn't have that, could we? Need to keep it all pretty for Cas."

Dean flushed bright red and swung the hose round, soaking his brother who squealed and leapt backwards.

"Shut up!" Dean exclaimed.

Sam just laughed, before making a hasty retreat before his brother could soak him again.

Please review so that I know what you think, and I'll try to get the next chapter up more quickly! Key word try...