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Crossing lines

Summary:

dan is a creepy little brother to phil. also its his birthday.

Notes:

this was heavily inspired by a post on @dnpdeaddove tumblr! x
i wrote this in a frenzy at 2am last night, enjoy! btw i will get off to hate mail xx

(See the end of the work for more notes.)

Work Text:

Dan had always been an odd child, even from a young age. He had a way of appearing out of nowhere, often catching his older brother Phil off guard in the most compromising positions. It was as if Dan had some sixth sense, always seem to pop up when Phil was not wearing any clothes, whether he was getting dressed or taking a shower. Phil had grown accustomed to his little brother's uncanny timing, but it still made him uncomfortable at times.

As the years went by, Dan's comments became increasingly inappropriate and perverse. He would make snide remarks about Phil's partners, saying they were "hot" or "fuckable" much to Phil's chagrin. He would also make crude gestures and innuendos, often leaving Phil sputtering in disbelief at his young brother's vulgar behavior. Phil had tried to brush it off as just a phase, hoping that Dan would eventually grow out of his weird obsession with his older brother's sex life. But as Dan's 16th birthday approached, Phil couldn't shake the feeling that something was off about his brother's intense fascination with him.

On the night of Dan's birthday, as Phil was in deep slumber, the soft creak of his bedroom door opening and being locked filled the room. Dan crept closer to the bed, he could see the outline of Phil's body beneath the sheets, the rise and fall of his chest as he breathed softly in sleep. Dan's heart raced with anticipation and a thrill of nervousness as he approached his kin.

"Phil?" Dan called out softly, his voice barely above a whisper. "Are you awake?"

He waited for a moment, and when there was no response, Dan carefully lifted the covers and slipped into the warm space beside his brother. He had to stifle a gasp as the heat of Phil's body enveloped him, the sensation sending tingles down his spine. They haven’t been this close since Phil insisted to stop having sleepovers a few years ago.

Dan took his time, savoring the closeness he had yearned for so long. His breath hitched as he inhaled the intimate scent of his brother's skin, a heady mix of sleep warmth and something uniquely Phil. Dan's fingers trembled slightly as he reached out, barely grazing Phil's collarbone with the back of his hand. His own heart raced, his pulse pounding in his ears as he drank in every detail of the face he had admired from afar for so long.

Dan let his hand travel upward, his palm cupping Phil's jaw. He could feel the light stubble that dusted his brother's skin, a sign of his manhood. It made Dan's own smooth face ache with a sudden longing, a desperate desire to grow up, to be just like Phil. His fingers trembled slightly as he let them wander over the column of Phil's throat, feeling the way his brother's pulse jumped beneath his touch. He could see the way his adam's apple bobbed as he swallowed in his sleep and it made Dan's mouth go dry.

Dan's breathing grew heavier as he let his hands explore further, his palms skimming down the sides of Phil's ribcage. He could feel each individual bone, the way they protruded slightly beneath the skin.

A body that was so achingly beautiful to Dan.

He let his hand drift down to his own body. He could feel the growing tightness in his pyjama bottoms, the way his own arousal strained against the fabric. Desperately, he began to palm himself through the thin material. His breathing grew more ragged as he rubbed himself, matching the rhythm of Phil's soft snores. The sensation of his own touch, combined with the intoxicating sight of his brother's sleeping face, sent waves of pleasure coursing through Dan's body. He slipped his hand inside his pyjama bottoms, wrapping his fingers around his already stiffened cock. He gasped softly at the contact, his hips jerking slightly as he began to stroke himself ever so slowly.

"Fuuck..." Dan breathed out, his voice barely a whisper. "Phiiil... feels so good..."

Slowly, reluctantly, he pulled his hand away from his aching cock, leaving it throbbing and leaking pre into his pyjama bottoms. Dan leaned in and pressed his nose against the bulge that was slowly forming in Phil's pyjamas. He inhaled so deeply, filling his lungs with the adult scent of his brother's arousal. The smell made his head spin and his mouth water with desire.

Unable to stop himself, Dan began to mouth at the sizeable lump in Phil's pyjama bottoms, his lips brushing against the thin fabric. He could feel the heat radiating off his brother's cock, could feel it twitching slightly as he breathed on it. Dan let his tongue slip out and begin to lick at the shape of Phil through the cloth. He swears he could taste the salt of his older brother's skin, could feel the way his cock jumped and pulsed as he used his mouth on it. It was wrong on so many levels.

Just as Dan was losing himself in the taste and scent of his sibling’s arousal, he felt Phil start to stir. Before he could pull away, he heard a soft groan escape his face brother's lips, followed by a sudden intake of breath.

Phil's jaw dropped open in shock and revulsion as he stared down at his little brother with wide, horrified eyes. "Dan...? w-what the actual fuck are you doing?" he sputtered, his voice dripping with disgust.

Dan froze, his mouth still pressed against Phil's clothed cock. He could see the shock and repulsion look in his sibling's eyes as he slowly processed the scene before him. Despite the horror in Phil's eyes, Dan couldn't bring himself to stop. Driven by desperate teen lust, he continued to kiss and lick at the bulge in his older brother's pyjamas. His tongue traced the shape of Phil's cock through the thin fabric, the heat and moisture of his mouth seeping through to tease his brother's sensitive skin.

"O-oh my god Daniel— fucking stop!" Phil gasped, his hips twitching involuntarily as his little brother's mouth worked over his clothed dick. "You're my brother, y-you’re just a kid."

Phil could feel the heat building in his groin, could feel his cock throbbing harder with each pass of Dan's tongue. The wet spot on his pyjamas was growing, the fabric clinging obscenely. Dan couldn’t resist the temptation any longer, he reached up and hooked his fingers on the waistband. With a sharp tug, he yanked them down, exposing his brother's hard cock to the cool air of the bedroom.

"Oh my… god, Phiil..." Dan breathed, his eyes widening as he took in the sight of the thick, veiny shaft twitching before him. "It's so big... and pretty..."

Dan's mouth immediately started watering at the sight, drool leaking from the corner of his lips as he stared in awe at his older brother's cock. The head was a delicious pink, the foreskin pulled back slightly to reveal the sensitive, glistening flesh beneath. It was the most perfect cock Dan had ever seen, not that he has seen many in person, it was so much bigger than any of the dicks he'd seen in the porn he snuck watching, so much more impressive.

"Does it hurt, Phil?" Dan asked softly, reaching out a trembling hand to brush his fingertips along the underside of his brother's shaft. "Your cock so big and hard... I bet it hurts to be so full all the time."

As he spoke, Dan leaned in closer, his face hovering just inches above his brother's dick. He could smell the masculine scent, could feel the heat radiating off the thick flesh. It made his head spin and his own cock throb painfully in his pyjama bottoms.

"Please, Phil," Dan begged, his voice shaking with desperation and need. "Let me make it feel better? I promise I'll be really gentle... I just want to make my big brother happy."

With that, he stuck out his tongue and gave the swollen, leaking head of Phil's cock a long, slow lick. He moaned at the taste, his eyes fluttering shut as he savored the flavor of his brother's pre on his tongue. Dan couldn't believe he was finally getting to touch his brother like this, he couldn't believe that Phil was actually letting him. It was like a dream come true, a fantasy he'd jerked off to so many times finally becoming reality.

Dan began to bob his head, taking more of his brother's cock into his hot, wet mouth. Inch by inch, he felt the heavy shaft sliding over his tongue, stretching his plump lips wide around the girth. He could feel it throbbing against his tongue.

"Mmmmph Phiiiil" Dan moaned around his brother's dick, the vibrations of his voice making the sensitive flesh jump and twitch. His hand continued to pump the part of the shaft that he couldn't fit in his mouth, stroking and squeezing the hard pulsing cock. He wanted to make Phil feel amazing, wanted to show him the depths of his devotion and desire. He wanted to be the best little brother he could be, in every way possible. Forever.

So he sucked harder, taking Phil's cock deeper into his throat with each bob of his head. He could feel it throbbing against his tongue, could taste the salty sweet pre cum that leaked in a steady stream. It was the most incredible thing he'd ever tasted, and he wanted to swallow every last drop.

Dan's other hand fumbled with the waistband of his pyjama bottoms, finally freeing his neglected teencock. It sprang up, slapping against his tummy, still leaking and rock hard with need. He wrapped his fingers around it, squeezing it tightly to relieve some of the ache.

"Mmm, fuck..." Phil groaned, his hips starting to rock slightly, pushing his cock deeper into his little brother's eager mouth without thinking properly. "This is….really messed up, Daniel....”

With that, Dan took Phil's cock deeper than before. He could feel it hitting the back of his throat, making him gag slightly, but he didn't stop. He wanted to take it all, wanted to swallow every inch of his older sibling.

"Your mouth... so hot and tight," Phil grunted, his breath coming faster as he lost himself in the incredible pleasure of his brother's mouth. "I can't believe... your sucking your big bro... like this..."

Dan pulled back slightly, gasping for air as Phil's cock slipped from his mouth. Strings of saliva and pre cum connected his lips to his brother's throbbing shaft. Before Phil could protest, Dan quickly shimmied out of his pyjama bottoms, revealing his own slim, hairless legs and the smaller leaking cock. Dan blushed deeply as he straddled Phil's lap. He could feel Phil’s hard cock pressing against his ass, so hot and insistent. The feeling of it made him shiver and clench down on nothing.

"I bet it would feel so good inside me," Dan babbled, his posh voice high and breathy with desire. "Stretching me open and filling me up... I want your big cock so fucking bad, Phil. I want you to ruin me with it."

"I... I don't think—" Phil said, even as his hips twitched upwards, pressing his dick harder against that tempting slick hole. "We can't go that far..."

But Dan just moaned, grinding his ass down against the older cock. He could feel it sliding between his cheeks, the head catching on his rim with each thrust. It made him crazy, it made him want to cry. He could feel the heat of it, his already stretched hole, could feel the way it pulsed and throbbed with each desperate grind.

"Please please please..." Dan chanted, his voice rising in pitch and volume as his need grew more urgent. "I'm not a kid anymore, Phil... I know what I want. I want you to be my first... my only..."

Unable to resist the temptation any longer, Phil grabbed his little brother's hips, his fingers digging into the soft flesh. He hesitated for a moment, his cockhead kissing Dan's fluttering rim, he knew there was no coming back from this. With a needy whimper, Dan pushed his hips down, feeling the thick head of his brother's dick slipping past his rim with ease thanks to the copious amounts of cherry lube he'd used prior entering his room.

"Your cock... it's so perfect..I... I can feel you... in my tummy... so deep..." Dan gasped, his voice breaking. Nails digging into Phil's chest as he eagerly impaled himself on his brother's shaft. His own cock bobbed and leaked against his belly, drooling pre as he slowly sank back down to the base of Phil's dick. He could feel it throbbing deep inside him, pulsing against his prostate, and it made his eyes roll back in his head.

"Please…w-we have to stop," Phil begged, even as his hips twitched upwards, sinking his cock even deeper into that tight, grasping heat. "if Mom and Dad knew we were... that I was inside you... they'd... send me to jail..."

"Shhhhhh ‘s okay Phil." Dan slurred, his words delirious with lust. "m not a kid anymore...not gonna tell anyone…promise."

To emphasize his point, Dan leaned down and crashed his lips against Phil's in a sloppy, desperate kiss. He shoved his tongue into his brother's mouth, swirling it around and tasting every inch of it. It was a filthy, lustful kiss, the kind of kiss that should have been reserved for lovers.

Phil groaned into the kiss, his tongue tangling with his little brother's in a lewd, sloppy dance. He could taste the desperation on Dan's tongue, the same desperate hunger that was consuming him. It made his cock throb and pulse inside the tight clutch of Dan's ass, driving him wild with lust.

"Mmmmph... Daan... fuuck..." Phil grunted, his hands sliding up Dan's back to tangle in his hair. He held his little sibling close, crushing their chests together as he kissed him back with equal passion. Their teeth clacked and their lips smacked obscenely, the kiss growing messier and more frantic by the second.

Dan whimpered into his brother's mouth, his hips starting to move faster, bouncing on Phil's cock with increasing urgency. The bed creaked and shook beneath them, the headboard slamming against the wall with each thrust of Dan's slim hips.

“Phiil... I'm gonna... gonnaaa" Dan cried out, his voice breaking with desperation. "I love you. Don't stop please don't stop. I want to come with you inside me."

"Me too, Dan. Fuck, me too," Phil panted, he could feel Dan's small body trembling against his own, could hear the desperation in his voice as he begged Phil not to stop.

With a final, hard thrust of his hips, Phil buried his cock deep inside of Dan as he felt his own orgasm crash over him like a tidal wave. His balls tightened, his shaft pulsing and throbbing as he shot stream after stream of hot, thick cum deep into his little brother's guts.

The sensation of his brother's cum flooding his insides pushed Dan over the edge. With a scream of ecstasy, he came untouched, his little cock jerking and twitching as it spurted watery, teenage cum all over their stomachs and chests. His ass clenched down rhythmically around Phil's pulsing cock, milking out every last drop of his precious load.

For a long moment, the siblings remained locked together, panting and trembling in the aftermath of their shared climax. Dan collapsed against Phil's chest, his small body going limp as the last waves of pleasure washed over him. Phil wrapped his arms around his little brother, holding him close as he caught his breath. Dan's eyes fluttered closed as he savored the feeling of his brother's arms around him and the lingering heat of their joined bodies. He knew this was a moment he would cherish forever, a memory he would revisit again and again in the privacy of his own bed at night.

“Mmmm, Phil..." Dan purred, nuzzling into his brother's neck. "I love you... I love you so much. Best. Birthday. Ever." Dan declared, his voice still slightly slurred and dreamy.

A cold dread crept up Phil's spine as the full weight of what they had just done settled over him. He looked down at his little brother's blissful, fucked out face and felt a surge of revulsion churn in his gut. They had crossed a line that could never be erased, a boundary that was never meant to be breached. He tried to pull away, to extricate himself from his brother's body, but Dan clung to him desperately. The movement made Phil's spent cock shift inside Dan's ass and they both shuddered at the sensation.

"It felt so good... didn't it? I know it did... I could feel how much you loved it."

Dan’s words made Phil's spent cock twitch traitorously inside Dan's ass, they both trembled, so sensitive for each other. As much as he hated to admit it, Phil knew his brother was right. He could deny it all he wants but his body would always betray him.

"Phil?" Dan asked softly, his voice barely above a whisper. "Will you... will you be my birthday present every year?.. I want you to fuck me again... and again... and again..."

Phil's cock practically jumped inside of Dan at the suggestion, already starting to harden again. He knew they shouldn't, knew he should put an end to this right now before it consumed them both. But looking down at his baby brother's flushed, satisfied face, he knew he would have a hard time denying him anything. Especially when it felt so incredibly right to hold him like this.

Notes:

we need more fucked up dnp stories. this wont be my last contribution.