Grinding against his brother's cock while being jerked off quickly turned into grinding on Lucifer's dick and then mouth-fucking him until his shot his cum straight down his throat. At least, Castiel had thought the progression was quick, until they progressed further than a blowjob in two days' time.
Cas had thought nothing of Lucifer bringing lubricant down with him two days later, jerking off with it, and he'd even been glad since he'd slipped Castiel's pyjama bottoms to his knees and slid his wet dick between his cheeks, simply sliding them back and forth. The underside of his brother's shaft rubbing against his hole felt pretty nice, though not as good as his lube-slicked hand stroking his hard dick, nor as mind-numbingly great as his hot, practised tongue swirling around his cock and balls.
But when, while shoved his hard dick repeatedly into big brother's mouth, a wet finger pushed inside his tight hole, Castiel yelped.
In just two days he'd graduated from getting his dick blown to having a calloused finger pumping in and out of his ass. "You all right there, Cassy?" Lucifer asked, concern sounding a lot different with his lust-deep voice.
Cas nodded. "Keep sucking."
Lucifer smirked. "You're such a slut, Cassy. I can't wait to make you cum." He licked the tip, never stopping his finger. "Can't wait to feel your muscles tighten around my knuckles. It's just like a little cock in your ass. You let me know if it hurts, okay?"
Cas nodded, and Lucifer brought his stiff dick into his mouth.
Having a finger pulling out of then pushing into his hole didn't hurt, but it was uncomfortable. It didn't much feel like anything, well at least nothing like having his dick sliding back and forth in a hot mouth. He'd already come into Lucifer's palm, and Lucifer had come in between Castiel's crack, so he doubted he was going to spurt any time soon.
The finger pulled completely out of him and Lucifer put more lubricant on his fingers, before pushing two deep inside him.
Castiel winced. Again, it didn't hurt, though it was uncomfortable and there was a slight twinge. Lucifer slowly wiggled his fingers and moved them back and forth, skin clutching at his knuckles tightly.
"That all right?" Lucifer asked against his testicles, tonguing between them gently.
"It's okay. It doesn't hurt."
Lucifer licked a stripe on the underneath of his cocked, before suckling the head softly.
Castiel thrust forward, the head slipping between Lucifer's mouth unceremoniously. Having two fingers inside him didn't make it feel any better; just awkward, but blowjobs? That's what he wanted.
Lucifer hummed and pleasure shot through him, rocking his hips into the heat against his will. The fingers were no longer uncomfortable,, and in fact were slipping in and out faster and smoother.
Lucifer crooked his finger and Castiel bucked; for a moment, he thought's he'd orgasmed suddenly, but he hadn't; he was still rock hard in his brothers mouth, but the pleasure had been that intense.
Lucifer started scissoring his finger and jerking them harder into his hole. Before Castiel knew it, he was rocking back against the fingers but thrusting forward into his mouth, trying to do both at the same time because goddamn did the fingers make him crazy. It was as if he was constantly stuck at the point before orgasm, and he was grunting, louder and louder with each second, into his sweaty palms. Lucifer stuck a third finger in and this time, it did hurt, but only slightly; it was a burn and a twinge, but the pleasure was so much stronger that he didn't care. He squeezed his muscles tighter, the pain intensifying as Lucifer scissor all three fingers and yet, the pleasure intensified too.
Castiel didn't understand how he could feel both at the same time, or how he was aware of the pain but somehow didn't care because with each time Lucifer shoved those three large fingers into him, sharp pleasure burst outward, filling his hips and dick with the buzzing he'd come to associate with orgasm, and yet he wasn't coming; not yet.
"You like that, baby? Like me finger fucking your tight virgin asshole?" Lucifer said, pulling away from his dick and slowing his fingers to an agonizingly snail-like pace. "Are you wishing it were my dick, little brother?"
"Well don't stop," Cas whined, pushing back against the spread out digits. The pain had dulled into a burn.
"God I love it when you're bossy."
He sucked Castiel's dick into his mouth against and didn't hesitate to hollow and cheeks and bob back and forth as fast as Cas had ever seen him. Knees shaking, fingers thrusting harder and quicker into his hole, pleasure starting to override the pain, he covered his mouth again because there was no way he was could be quiet. He was being assaulted on both ends with such intense pleasure, hips jerking back and forth because he couldn't deicide what he wanted more, that he worried that even with his hands pushing against his mouth, his family would hear him shout.
When he came, he babbled into his palm, eyes slamming shut so tightly colours popped in the black. His legs gave out and he dropped to Lucifer's lap, wincing at the slight pain when Lucifer's fingers yanked out of his hole because of how quickly he dropped, cold air against his throbbing dick. His hole kept clenching on air and his body shook. Usually when he came it ended as quickly as it hit him, but now it was dwindling away.
It wasn't just his dick that was sensitive, but his skin. When he opened his eyes, Lucifer's face was smiling at him, semen smeared on his lips and some dribbling down his chin.
Castiel leaned forward, but Lucifer pulled his head back and put his hand on his chest insistently to stop him. "We should clean up," Lucifer said, gently removing Cas from his lap.
xxxxxx
His hole had been sore the following day after the first time Lucifer had finger-fucked him, but he didn't stop him when his index finger circled his hole. He was much gentler the second time because, even though Castiel tried to hide it, he did wince and hiss at the sting. Though it had taken much longer than it ever had before, he came hard down Lucifer's throat, two fingers massaging the spot that had taken Lucifer three minutes to find, but ages to do anything about.
Because of how quickly it took them to go from one stage to the next, Castiel had expected to move further within the week. He'd been wrong.
They were at a standstill; a mind-blowing amazing standstill, but they were stuck nonetheless. Cas would tiptoe to the living room at two am to Lucifer's already-slicked cock. He would sit on Lucifer's lap-sometimes between his legs, sometimes with his legs on either side of Lucifer's thighs-with his thick, adult cock sandwiched between his cheeks, grinding. He would cum, the underside of Lucifer's bare cock pressed against his hole, until his big brother shot semen up his back. After that, he would stand on the couch, pyjamas around his knees still, and Lucifer would suck him off with three thick fingers pumping into his asshole until he came hard enough he always had a moment of somewhat detached panic that maybe he'd shouted too loud this time and one of his relatives would come pounding down the stairs to see them sweaty and glowing, semen everywhere.
Although their nightly routine hadn't changed, their daily one had.
They went shopping together, alone. They held hands, they sat by each other on the couch, they squeezed each other's thighs, and hugged more often. Nobody gave any impression of noticing how they continued to get closer, both emotionally and physically.
Michael and Lucifer had a shouting match that shook the walls of the house about something that had happened years ago. When Michael stormed out and drove away, nobody had been surprised. They hadn't been at all surprised when he called to tell them he wasn't coming back, either. Gabriel hadn't stayed long after that. He said it was because he couldn't keep spending extra gas money driving to work, as his own home was closer to work than theirs, but Castiel didn't believe him. Lucifer and Michael were always at each other's throats so it was more shocking they'd lasted as long as they had. However, Gabriel and Lucifer hadn't' ever been close either and without Michael as a buffer. Maybe Castiel was being cynical, but he doubted a few extra miles bothered Gabriel as much as he let on. Castiel may have been young when they all moved out, but his memory was better than they all gave him credit for.
He was thirteen, not eight. Yet they still talked down to him as if he didn't understand basic common sense. He was in eighth grade; next year, he would be in high school. It was annoying, but at the same time, nobody seemed to care that he nuzzled into his older brother and held his hand far more than was appropriate for a kid his age.
That was why he liked Lucifer so much. Lucifer didn't talk down to him, didn't' second-guess his observations. He wouldn't be sucking his cock and fingering his ass nightly if he though of him as a child.
Castiel was always in charge of what happened on the couch-always. It had taken him until last night for him to realize it, but it was true. It had been Cas who had started the touching and cuddling; it had been Cas who had slid over his cock and started rubbing. Lucifer never came up to his room and asked him to join him in front of the TV. Cas chose to leave his room and go to him every night. Even when Lucifer took it to the next step (by sucking his cock or sticking his finger in his ass) he always asked if it was okay, without patronizing him.
He never held back from talking dirty or making him cum so hard he forgot his name. And Castiel, well. He was going to do what he wanted this time. He was going to take it to the next step on his own. Lucifer called him bossy while talking dirty. Maybe he would have to show him just how bossy he could be. He'd been working on saying naughty things while masturbating into his pillow; he hoped he didn't embarrass himself tonight.
He came into his palm quietly, three of his own fingers up his ass. He didn't want to orgasm so quickly this time; he wanted to last for his brother. It was taking longer each time, but he was still finishing first. At least now his butt wasn't sore anymore, though. Not only was Lucifer stretching him, but he had been doing it, too.
He looked at the alarm as he tossed his tissue into his garbage can he left in the corner by the door. It was eight past two; he'd never been late before.
He briskly left his room and padded towards the living room. Lucifer sat on the couch, hand stroking his thick, erect cock, the slicking sound of lubricant louder than the television.
Lucifer stopped jerking off when Cas stepped in front of his view. "I thought maybe you got bored of me."
"That isn't going to happen. You make me feel good." Cas pushed his pyjama pants down to his knees. The bottle lay on the cushion beside him, TV light reflecting off his lubed-up penis. "I didn't tell you to stop masturbating, Lucifer."
"I love it when you tell me what to do, Cassy. It gets me all hot." He winked, but his pal slid down his dick slowly.
Cas rubbed at his soft penis, faster than Lucifer rubbed his. Smiling, he walked toward Lucifer and turned around. He straddled Lucifer, so his boxer-clad legs were in between Cas' thing ones. His wet, hard cock pressed between the crack of Cas' ass.
He wasted no time in grinding back against it.
"Yeah baby, grind on me. Make me cum."
Castiel's cheeks burned hot; not because of what Lucifer said, but because of what was to come. "You like that Lucifer?" He pushed his cracked against his cock and slid up, teasing the tip of his penis with his hole, already wet with his own lube in his room.
"God you know I do. You know I think about fucking you 'til you can't walk right. Making your cum so hard you forget your own name, semen pumping into your hot virgin ass."
Cas put his hands on Lucifer's knees, hairs tickling his palm. "You know what I think Lucifer?"
"What baby?"
"You talk too much."
He sunk down on Lucifer's cock, wide head popping right in. Lucifer gasped, loudly, and froze. Cas squeezed his eyes shut. Even though Lucifer's fingers had been spreading him nightly, as well as his own, it had hurt-though not nearly as much as he'd anticipated. He'd planned it, though; planned using his hands for leverage, planned on slipping it inside him quickly.
He pushed himself down until his ass was flush with Lucifer's waist and swallowed the ball of nervous that clogged his throat. He was stuffed full and uncomfortable, but it would pay off. Already, the pain was dulling.
He pulled himself up, knees pushing into the cushion and fingernails digging into Lucifer's skin. He sunk down again, slowly so as to get used to the feel of something other than fingers moving into his body.
The ridiculous phony sex scenes from Cinemax played on and he slid up and thrust down, hard, making Lucifer let out a sound that was almost a sob. A slow burn started in Castiel's belly and this time when he pulled up then pushed down again, nothing but pleasure filled him.
He rode his brother at a consistently quickening pace, breathing heavily. With each thrust up into his body, Castiel whimpered quietly, and Lucifer couldn't stop gasping and hissing out in pleasure.
"What's the matter Lucifer? Cat got your tongue?" Castiel asked while he continued to bottom out over and over. He could get addicted to the feel of a big cock inside him. Lucifer made a noise, but it was impossible to decipher. Castiel sped up his pace, toes starting to go numb. "I thought you want to fuck my virgin hole and fill me with your cum. Was that all talk, big brother? Or did you mean it?"
"Oh my God," was all Lucifer could say, hands clutching onto Castiel's waist and guiding him harder and faster.
"I need some confirmation, Lucifer."
"Yes, oh God yes."
Castiel clenched down and sped up the pace. His elbows were starting to shake and his heart beat so fast, it wouldn't' surprise him if it burst form his chest. "Yes what?"
"I love it."
"Love what?"
"I love fucking my baby brother's ass. Oh my god I'm fucking my little brother." The last part was spoken as if he'd just realized it; as if he'd had no idea, as if he couldn't have foreseen this happening. As if they hadn't been doing everything else for weeks. "I'm fucking you, Cassy I'm fucking-" He cut himself off with a harsh groan and slammed hard upward.
The last thing he felt before his orgasm overcame him was Lucifer's hot cum filling him up; after nothing, nothing but white-hot pleasure hitting every nerve of his body. His hips jerked violently on their own, sending wave after wave of bliss through his body. He screamed, loud, and it worried him until he belatedly realized at some point, Lucifer's wide palm had come up to slap over his mouth, drowning out his screams. Lucifer's mouth was pressed against his back, dick snapping into his ass over and over, cum spilling out so he could feel it against his bare ass.
Finally (whether it was seconds or hours later) he went lax against his brother, so relaxed he could've fallen asleep just like that, filthy and his brother's softening-cock slipping out of his hole. He could, though, obviously, so he unfolded his legs and lifted himself off his brother. Something slick dripped down his inner thighs and the floor in front of the couch was spattered with ropes of cum-his own.
Shakily, he pulled up his pants and sat by Lucy, whose dick rested alongside his thigh outside of the slit of his stained boxers.
Castiel pressed against his brothers side, whose strong arm wrapped around his shoulder. The woman on the TV moaned fakely as she dry-humped the actor's navel (though Castiel was supposed to believe they were having intercourse).
"Are you all right, Lucifer?" Cas asked, because he had spring that on him quite suddenly.
"I'm more than all right. Are you?"
Cas nodded, then turned his face so he could look his brother in his eyes. Lucifer had been staring at him already, pales eyes bright with something other than the light from the TV. "I'm perfect."
Lucifer smiled.
Cas leaned up and caught his mouth with his. Lucifer froze beneath his lips, but only for a second. Cas had never kissed anyone before, but it sent shivers up his spine and Lucifer's lips parted beneath his and a small hint of tongue brushed against his. Lucifer was much softer than he expected, even with the scratchy facial hair.
He pulled away, breathless for a long second. Lucifer kissed his forehead.
"Lucifer?" Castiel whispered.
Here it was; what he'd been planning for the whole week. Well, at least one of his plans, anyway.
"Hmm, baby?"
"When you leave at the end of the summer, can I come with you?"
Lucifer's face fell, but his eyes widened. Castiel's heart stopped in his chest. "Are you sure you want to?"
"I'm positive."
Lucifer nodded. "Then yeah."
Castiel smiled into his brother chest, and nearly giggled excitedly when he felt his lips on the top of his head.
"Where'd you learn to talk like that, Cassy? You've got a filthy mouth."
Lucifer had to know the answer to that, but Castiel would humour him. After all, it was the answer to nearly everything. "You."