Can someone please write me a hs!AU where Dean and Cas are bffs and it’s the night after finals so they decide to go skinny dipping and Cas gets all shy about it but Dean (harboring a huge crush on his best friend) goads him into it and it turns out Cas has a HUGE cock and Dean gets a boner then sexytimes?
Because I love you, Savanna, here you go. Also NC-17 ZOMGZ.
Finals had been a complete bitch. Dean had stayed up til all hours of the night at Castiel's house and all they did was STUDY. No video games, no board games, no watching bad science fiction films on late night TV, no fooling around, just studying til they fell asleep on their text books and then groggily waking up to walk home. But that was done and over now. Finals were FINISHED and they were free!
They goofed around all day after finals were over, riding their bikes to the mall to just hang out and playing some video games, eating dinner together at Dean's house and then planned an epic sleepover. It was just after midnight, they were sitting on the floor in Dean's room looking at comics when all of a sudden, Dean looked up at Cas.
"Dude. Swimming."
"Swimming?" Cas furrowed his brows.
"Yes. Swimming. Let's go swimming. It's hot as hell tonight and I want to go swimming."
Cas laughed, "Okay, where?"
"The lake, duh. Come on." Dean stood and grabbed Cas' hand, pulling him to his feet. With a grunt at his arm being pulled, Cas was dragged to his feet. Dean couldn't be stopped now, he pulled Cas out of the room, down the stairs and out the front door. He only let go of Cas when they grabbed their bikes and hopped on.
Leading the way, Dean took them to the Lawrence Country Club, which had a huge lake and would be empty at this time of night. Cas was out of breath by the time they got there and suddenly realized something. Dean hopped off his bike and leaned it up against a tree as he walked towards the lake. Cas did the same and followed slowly behind.
"Dude, come on, what are you doing?" Dean asked, turning around and walking backwards towards the lake.
"Dean, we don't have swimsuits." Cas fretted slightly.
"Who needs swimsuits?" Dean yanked his shirt off and gave a wide grin and a shrug.
Cas stopped in his tracks and bit his lip. He watched Dean toss the shirt aside and turn around, running towards the lake now. Tentatively removing his own shirt, he tossed it on top of Dean's and jogged over to the edge of the lake. Dean had already pulled his boots and socks off and was unzipping his pants.
His bottom lip would be bleeding in a moment if Cas didn't stop chewing it while he watched Dean undress. They changed around each other before, but it was different now, for some reason. Dean was standing there in only a pair of boxers now and Cas felt something in the pit of his stomach. He looked down at himself, sighed and started to take his shoes off.
By the time Cas got his Converse off and set his socks inside, he had just enough time to see a flash of Dean's naked ass before his best friend jumped into the lake.
"Dean!" He shouted, but Dean was under water.
When Dean surfaced again, he was dripping wet and grinning like a cihld, "Dude, Cas, get your clothes off and get in here!"
"What if someone finds us!" Cas looked around, suddenly worried.
"Who's gonna be out here at this time? Come on, you big baby. Get in here."
Still fretting, Cas unzipped his jeans and shimmied them off. Deciding to leave it at that, he started towards the water.
"Dude. Wait, you can't swim in your boxers."
"And why not?"
"Because then they'll be wet and you'll have to wear jeans commando. Seriously, no fun when you're wet. Trust me."
"Dean..."
"Cas!" Dean mocked. "Man up, already."
Cas rolled his eyes. "Turn around."
"Dude, I promise not to laugh, you can't be that small." Dean was smirking.
"Dean, you ass!" Cas glared at Dean, who just kept smirking. "Fine." He pulled his boxers down and revealed that he was, in fact, quite large. And he was satisfied when he saw the dumbstruck look on Dean's face. "Happy now?"
The dumb look on Dean's face didn't go away, so Cas dove into the lake. He surfaced with his head tilted back so his hair wouldn't be in his face, Dean was only a couple feet away.
"Dude."
"What?" Cas tried in vein to hide a smirk.
"Dude, what the hell, I had no idea."
"What?" Cas laughed. "That I'm bigger than you?"
"Shut up!" Dean splashed water at Cas and rolled his eye. Cas splashed him back and an all out war ensued.
At one point when Cas went to splash Dean again and Dean grabbed his wrist, pulling him forward. Their bodies collided in the water and Cas wrapped an arm around Dean's shoulders to keep himself up. There was nothing between them now and it should have been awkward, but it wasn't. An intense moment passed between them when their eyes met that left Cas breathless as his laughter died out.
Dean's eyes flickered from Cas' eyes down to his lips. He seemed transfixed on those parted lips, then finally gave in to his urges. He captured Cas' mouth in a hard and sudden kiss that Cas returned eagerly. The kiss was sloppy and harried, both of them filled with hormonal desire, hands all over each other and legs kicking to keep them afloat.
Cas gave up trying to stay afloat and wrapped his legs around Dean's waist. His hands cupped Dean's cheeks as he kissed him fiercely. Dean kept one arm wrapped around Cas' body while he used the other to help him tread water. He quickly decided that trying to stay afloat was detracting from the attention he wanted to give Cas and moved them to the edge of the lake.
On the shore of the lake, he laid Cas down on his back and laid atop him. Dean's hands slid up Cas' chest to his shoulders, one stopping on the crux of his neck, fingers splayed across tender skin there. He quickly captured Cas' lips in another kiss, pressing his whole body down. Cas was still holding Dean's face between his hands and arched his back up against Dean's body, kissing Dean like he couldn't get enough of his mouth.
They made out on the water's edge, letting their kisses do all the talking about how long they had waited for the moment when they let their guard down and confess mutual crushes on each other. They had been friends since early childhood and best friends for years. Dean had a girlfriend or two, but always lost interest in her after a short period of time. Cas had occasional flings with boys, but always left when Dean didn't seem to like anyone he showed interest in. This moment answered everything about their failed romantic interludes with anyone else. This moment was what they were both waiting for.
Dean broke the kiss, much to Cas' dismay, which he vocalized in a whine. It didn't stop Dean from his actions, though, as he grinned and started trailing kisses down Castiel's neck and chest. The whine from Cas quickly turned to muffled whimpers and moans. Dean's progress down his body was slow and tantalizing. His lips were joined by trailing hands, which only sought to tease Cas.
Meanwhile, Cas writhed and moaned, bringing his hands down to grip Dean wherever he could reach: shoulder, side of the neck, back of the head, in that short hair of Dean's. Dean seemed to enjoy every moment of his, smiling against Cas' side before grazing his teeth over skin that made Cas gasp.
"Damn it, Dean... haven't we waited long enough?"
"I'd go faster, but you keep making all those sounds..." To prove it, he kissed Cas' hip bone and started trailing kisses towards that large penis, which made Cas moan an unholy sound.
"Fuck..." Cas groaned. Dean smirked.
Finally taking pity on his best friend, Dean pressed a kiss to the base of Cas' cock. When Cas gasped, he couldn't resist any longer. Dean trailed a long, slow lick from the base all the way to the tip, swirled his tongue around the top, then slowly lowered his mouth over the length. He'd never done this before, but he knew how it worked and what felt good. Cas was too big for him to fit in his mouth, so Dean brought a hand to hold the base. He stroked Cas while he brought his head up and down.
Cas was beyond the ability to make sounds. His head was thrown back and eyes were squeezed shut, little gasp kept his own throat busy while Dean's throat was busy driving him insane. The hand on Dean's shoulder gripped him tightly, fingers digging in. There was a good chance he'd be bruised by the end of this. His other hand tried to grip Dean's hair.
The blowjob was devastatingly short, because just the thought of Dean being the one performing it was nearly enough to make Cas come at the start. He could only hold off for so long, though, before his body betrayed him and he came. Grunts had turned into eager, hoarse gasps and then one long moan as Dean brought him to an end.
Dean tried to swallow, more because he didn't know what else to do when Cas released in his mouth. He choked and coughed, then just laughed at himself. They were both breathless and happy, smiles plastered across their faces. The hand on Dean's shoulder gave a tug as Cas pulled Dean up his body again. With a bright smile, Cas kiss Dean hard on the lips, thanking him for a job well done.
Dean collapsed on top of Cas and they laid there together happily, Cas promising to return the favor just as soon as he caught his breath.
