Work Text:
At the beginning of the second year of Tai Shi, the Emperor once again returned to the northern hot springs to celebrate the new year. By now, the ministers knew to leave the Emperor be, scrambling to hold everything in order while he was gone. Rarely did anyone visit during this time, allowing the Emperor to rest in peace to his heart’s content.
“Yifu…”
Chang Geng mouthed at Gu Yun’s neck, kissing the fresh, red marks that bloomed across his skin and sucking more with lips and teeth. He pressed Gu Yun further into the wall, both his wrists caught and locked above his head with one of his own, his other hand loosening the belt that held Gu Yun’s single, thin robe together.
They had just left the hotspring. Moist warmth still clung to their bodies, both from the spring and from when Chang Geng had coaxed Gu Yun to sit on the edge so that he could take him into his hot mouth and slowly undo him. Even now, Gu Yun felt boneless from it all, caught between comfortable and pleasure.
When Chang Geng pushed aside his robe, exposing his flushed backside, Gu Yun shuddered at the cool air, then swallowed a groan when Chang Geng pressed flush against him again, the length of him, covered only by a similar thin robe, settled hard and hot in the space between Gu Yun’s backside, insistently spreading those cheeks to burrow closer.
“Chang Geng…” Gu Yun let out a strained exhale when Chang Geng’s hand wrapped around his cock, biting his bottom lip. Trapped with nowhere to run, Gu Yun closed his eyes and tried to hold onto his rationality even as Chang Geng started to leisurely stroke him. “Not… ah, not outside…”
“No one will see,” Chang Geng said by his ear. He brushed his lips against the outer shell of his ear and nuzzled his hair. “No one will hear, either. Yifu doesn’t need to worry.”
With a twist of his hand that sent a jolt of pleasure up Gu Yun’s spine, Chang Geng picked up the pace. Gu Yun was already boneless earlier. Under Chang Geng’s hands, he was continuously met again and again with pleasure, needing to lean against the wall for support as his legs became unsteady.
A red blush settled across the nape of Gu Yun's neck, rising up to color Gu Yun's ears as he let desire consume him. His hips moved in tandem with Chang Geng's strokes, thrusting into his hand and back against Chang Geng's clothed cock, driving both of them mad.
He swiped his thumb across the tip of Gu Yun, gathering and spreading the wetness, making the slide smoother. Gu Yun’s cheek was pressed against the wall, lips parted as he panted. His eyes were somewhat murky and unfocused, but when he caught Chang Geng looking, he turned his head to him, open and wanting.
Chang Geng leaned in and gave him what he wanted, kissing him gently at first, then deeply. Every noise Gu Yun made, from the breathy faint pants to the open-mouthed moans, Chang Geng drank all of them fully, not letting a single one escape, enjoying this thoroughly.
As Gu Yun inched closer to the edge, he broke away from the kiss with a groan, hips faltering as Chang Geng sped up. His fingers curled into fists, back arching, bottom lip bitten between his teeth to stopper the nonsense piling on his tongue. Chang Geng pressed a kiss to the bright cinnabar mole on his ear and coaxed him, “Yifu, come for me.”
Gu Yun’s entire body tensed, then he spilled into Chang Geng’s hand and onto the wall. Between Chang Geng and a hard place, even if he wanted to collapse, he was unable to. He breathed erratically as Chang Geng wiped his hand on his robe.
When Gu Yun’s hands were freed, he pressed them against the wall, willing himself to stay upright. Chang Geng wrapped an arm around his waist to support him, but it only pulled Gu Yun up against Chang Geng’s desire, and the heat that was slowly ebbing away was locked back inside his body.
“Chang Geng, you- “
“Don’t worry about it,” Chang Geng said. He carefully turned Gu Yun over and let him lean his back to the wall. With gentle hands he folded the sides of Gu Yun’s robe one over the other and refastened the belt around his waist, completely ignoring little Chang Geng jutting against his robe. He looked at Gu Yun, and even though there was some lingering desire at the edges, his gaze was warm and a bit mischievous, like the small smile on his lips. “Are you alright? Tired?”
If Chang Geng said not to worry about it, Gu Yun wouldn’t waste breath worrying. He lightly hit Chang Geng’s shoulder and pinched the corner of his smile. “What do you think?”
Chang Geng laughed and corrected his question, “Was it good?”
Gu Yun smiled and carefully pushed away from the wall, teasing lightly, “Your Majesty’s technique isn’t bad.”
Gu Yun’s legs were still a bit unsteady. When he took a step, Chang Geng used an arm to steady and support him as they walked. He quipped back in reply, “Is that so? I’ll have to trouble Marquis for the next few days to help me improve my technique. That person in my family is a bit sensitive. I’m afraid whenever we lie together, he doesn’t enjoy it...“
Gu Yun cut in with an angry laugh. “Where did you find so much bullshit to spout?”
Chang Geng bit back his laughter and said rather demurely, “Afterwards, no matter how gentle or careful I am, the back always aches for days on end. Rest and acupuncture can’t seem to cure it. Strangely, only going out to play in the capital and the border seem to- “
Gu Yun pulled him down by the collar and kissed him quiet. Chang Geng smiled into it, breathing out a bit of laughter when Gu Yun licked his lips open, a soft and careful coaxing.
When they pulled apart, Gu Yun didn’t let him go very far. There was a complicated look in his eyes as he gazed at him, and after a long while, he eventually admitted, “I enjoy it.”
Chang Geng reached out and intertwined their fingers.
It’s not as though Chang Geng truly thought Gu Yun hated it. If that was the case, no matter how much affection there was in his heart, Gu Yun wouldn’t have endured it for years now. Chang Geng was only teasing this shameless man a little bit and didn’t expect to receive an honest admission out of him.
Though being met with this unexpected confession, Chang Geng felt a bit complicated.
“Alright,” he said, tugging their joined hands. “I was only teasing a bit, Zi Xi. Don’t take it to heart. We’ve been outside for too long now. Let’s head back inside.”
It didn’t end after that first day. Chang Geng must have gotten some idea stuck in his head. Whenever he could, his hands would always be on Gu Yun, wandering, touching, teasing, exploring with more attention than he ever had before. Gu Yun wasn’t allowed to rest. Every day brought a new form of pleasure.
After one of these sessions, still high from Chang Geng’s touch, Gu Yun had half the mind to think, Did he visit a brothel while I was gone?
If it wasn’t waking up to Chang Geng’s three fingers deep inside of him, already achingly hard and dripping onto the sheets, it was Chang Geng pulling out some toy those lust-addled Westerners had come up with to try out on him halfway through their meal. Gu Yun could hardly count the number of times they’d done it.
Fingers pressed against his bottom lip. "Don't keep it in. Tell me, is it good?"
Gu Yun opened his eyes. A bit of moisture clung to the corners from the steam of the hot spring, his gaze a bit dazed.
Chang Geng looked back at him with a small smile. He slipped his hand to the nape of Gu Yun's neck, coaxing him down. "Come here, Zi Xi."
Chang Geng kissed him, tongue licking into Gu Yun's mouth, slow and sticky sweet. There was nothing left blocking the sounds in Gu Yun's throat, all of them falling from his lips freely to be swallowed by Chang Geng.
"Ah… Chang Geng," Gu Yun reached down and wrapped a hand around Chang Geng’s. "Faster…"
But even with Gu Yun urging him, that hand wrapped around both their lengths didn't speed up or slow down, keeping that steady, frustrating pace. Gu Yun was blocked at the edge of release, feeling it gathered low and heady in his abdomen but not enough. He unconsciously twisted his waist, hips thrusting shallowly into Chang Geng's hand and against the heavy length of Chang Geng's cock, chasing after the pleasure just out of reach.
It was maddening. Gu Yun pulled away from the kiss, eyes clenched shut as Chang Geng's hand worked over them both. His face was flushed, and those lips that were kissed red and moist by Chang Geng unconsciously parted, saying quiet as a whisper, "Please…"
Chang Geng stared at him in a daze. He unconsciously tightened his grip, and Gu Yun shuddered, head falling back as a low moan escaped him. His hips jerked up into Chang Geng's hand.
"Chang Geng." Gu Yun's voice was somewhat pitiful, plucking heavily at the strings of Chang Geng's heart. "Please…"
Chang Geng had intended to drag this out, but hearing his voice, anything Gu Yun asked, Chang Geng would do in this moment. He twisted his wrist, feeling Gu Yun tremble above him, and asked, "Please what?"
Gu Yun had never begged anyone in his life. Even now, after that small plead, he sealed his mouth shut, refusing to speak.
Unexpectedly, Chang Geng's hand stopped, then drew away entirely.
Gu Yun blearily opened his eyes, panting as Chang Geng coaxed him to meet his gaze.
A thumb brushed over Gu Yun's cheek. "Yifu."
After playing with him this long while, Gu Yun's eyes had reddened. Chang Geng felt his heart beat faster at the sight of him like this.
There was a selfish part of him, the one that was always greedy for Gu Yun, that wanted to overwhelm him with pleasure until he clung to him and cried out, voice faint and breathless, saying things and doing things for only Chang Geng to see and hear, until eventually his hands would reach out to Chang Geng, wanting to reciprocate.
But having Gu Yun accept him was already enough. Chang Geng loved him like this, not quite a perfect fit but slowly wearing away his edges so that they could fit more comfortably together.
Even this - letting Chang Geng have his way with him whenever and wherever - was an edge Gu Yun had worn smooth until it was as easy as breathing, letting Chang Geng slide into him, soft and tender.
He lowered his head, kissing a passing scar before his lips met a wet, hardened bud. With a flick of his tongue, Chang Geng took it into his mouth, feeling Gu Yun bury his fingers into his hair as his back unconsciously arched, pressing him closer with a shaky sigh.
One of Chang Geng's hands slid down Gu Yun's back, warm fingers dragging across the length of his spine, until they slipped under the water and between Gu Yun's backside, pressing against the even warmer entrance down below.
Gu Yun’s hole fluttered against Chang Geng's fingers. He swallowed, murmured against Gu Yun's chest, "Yifu."
Hot air blew across Gu Yun's nipple. In a daze, he moved back, accidentally pressing the tip of one of Chang Geng's fingers just inside and clenching down on it in surprise.
Chang Geng could only feel Gu Yun sucking his finger in slightly. He nearly bit his tongue and said hoarsely, "It'll hurt."
"Chang Geng." Gu Yun buried his face in Chang Geng's hair and faintly said, "I want you."
Chang Geng's ears pounded. He stood from the hotspring with Gu Yun's legs wrapped around his waist, his arms around his shoulders, Chang Geng's hands cupped around his firm backside. He squeezed it, feeling Gu Yun’s arms tighten around him afterwards.
Gu Yun rarely let himself be carried, much less like this, but in the haze of making their way to the bedroom, he hardly seemed to mind, testing Chang Geng’s limits with whispered words into his ears, lips on moist skin, a hand wrapped around both their lengths. Chang Geng could hardly count how many times he'd stopped to press Gu Yun back against a wall, thrusting into his devious hand and kissing him breathless for long enough to take a few steps before he repeated the process all over again.
Gu Yun laughed. "Insatiable."
Chang Geng snarked back even as he lowered Gu Yun onto the bed, "Impatient."
Gu Yun's eyes went half-lidded, gaze smoldering as he licked his lips. "Can I be blamed? Even though we've been here for several days already, doing it every step of the way from the dining room to the hot springs, you've never once put it in me."
Chang Geng startled.
Gu Yun tugged his hand. "What were you afraid of?"
Chang Geng looked at him. "I… didn't want to hurt you."
Unexpectedly, Gu Yun smiled. "Brat." He parted his legs. The thin robe Chang Geng covered him with before leaving the spring naturally fell open, exposing his scarred chest and the enticing red nipples and the erect cock wet with pre-come. "Didn't I already tell you earlier that I enjoyed it?"
Chang Geng swallowed.
"Your waist…"
"Some small aches are only natural when Little Chang Geng is that big."
Gu Yun tugged his hand again, and Chang Geng fell into his arms, kissing him as if wanting to eat him up. His free hand wandered the head of the bed, finding the small jar of oil to slick his fingers with before reaching down to rub against Gu Yun's hole.
Carefully, he inserted one finger. Gu Yun moaned, hips urging that finger deeper, the soft inside warm and welcoming even as Chang Geng pressed another finger inside, slowly spreading Gu Yun open.
"Ahh… Chang Geng…"
Chag Geng's fingers brushed against that spot that had Gu Yun crying out. "Zi Xi, is it good?"
Gu Yun panted, urging him, "Hurry… I- I want…"
Of course, Chang Geng understood. He shifted until he was comfortably on top of Gu Yun, and Gu Yun wrapped his legs around his waist, heels pushing Chang Geng closer to where he wanted him. With all his willpower, Chang Geng slowly pressed into him.
Even though they had done this many times before, Gu Yun would never get used to the size of Chang Geng’s cock. It really felt as if it would split him apart and drive him insane, always rubbing against his prostate. the head of it faintly pressing from the inside the soft flesh beneath his abdomen when Chang Geng fully settled.
"Zi Xi…"
Chang Geng's thumb pressed against the head of Gu Yun's cock, where white pre-come had spilled. Gu Yun could feel himself teetering at the edge but didn't want to fall yet. He shuddered at the touch, pushing Chang Geng’s hand away.
"If you keep touching, I'll- a-ah!"
Gu Yun came into Chang Geng's hand, red-kissed lips falling open in a strangled gasp, his soft insides squeezing deliciously around Chang Geng's cock, fluttering erratically as Gu Yun struggled to come back to himself.
Chang Geng watched him, hand wrapped lightly around Gu Yun’s length, then lowered his head to ask, "Zi Xi, can you come again?"
Gu Yun trembled, legs tightening around Chang Geng's waist.
With a small smile, Chang Geng pulled back and shallowly thrust into Gu Yun. He did it again and again, each time deeper and harder, not giving Gu Yun any time to completely soften while stroking his cock. Gu Yun was still oversensitive. He twisted his waist, wanting to pull away yet push closer, little sounds escaping his throat that only spurred Chang Geng to go faster.
Chang Geng kept up the pace until Gu Yun was back to full hardness. He pulled out, flipped Gu Yun over onto his stomach, and pulled his waist up until he was on his knees, lifted the hem of his thin robe up to reveal the wet, pink mouth, and thrust back inside. At this angle, he seemed to reach the deepest part of Gu Yun, driving the both of them mad.
Gu Yun could hardly think as he continued to take Chang Geng. His upper body pressed against the bed, fingers twisting the sheets as Chang Geng continued thrusting into him. As his body rocked higher and higher up the bed with each thrust, his chest rubbed against the sheets, stimulating his nipples to an almost unbearable extent. Between his legs, his cock hung heavy, swaying slightly, dripping pre-come.
Gu Yun was tingling from head to toe, creeping back to the edge of release.
“Chang Geng… ah, I’m- so close… “
“Not yet- “
Chang Geng wrapped a hand around the base of Gu Yun’s cock.
This brat really-
Gu Yun could not feel truly angry in this state. Chang Geng appeased him by stroking the length of him lightly as he thrust, then blocking him from release once more.
“Xingan’er.”
Chang Geng leaned down, slipping the fingers of one hand between Gu Yun’s, intertwining them together. Like this, he covered Gu Yun completely. He murmured back, “Yifu.”
Gu Yun’s entire body was flushed from Chang Geng ministrations. He buried his face into the bed to hide, but one blushing ear was visible. Chang Geng’s heart was endeared at the sight.
Even if Gu Yun didn’t say it, Chang Geng understood what he wanted.
“Together, okay?”
With one hand stroking Gu Yun’s cock and another cock thoroughly fucking Gu Yun into the bed, it didn’t take long for Gu Yun to come for the second time. Chang Geng followed not too long afterwards, filling him up with warm seed. Some trickled out when he pulled away from Gu Yun, dripping from the pink, abused hole.
The sight of it nearly made Chang Geng’s softening cock hard again.
However, Gu Yun was tired, still trying to catch his breath. To compromise, Chang Geng pressed kisses to Gu Yun’s skin and used his fingers to push what was trickling out back inside.
When he took a look at Gu Yun, Chang Geng asked, “Zi Xi, does your waist hurt?”
Of course it hurt. Taking someone as large as Chang Geng - even if during the act there was no pain, afterwards there would be some lingering aches.
Gu Yun shut his eyes and mumbled neither here nor there, “It was good.”
Chang Geng smiled, knowing Gu Yun didn’t want to worry him.
In the end, there was such a thing as aches and pains from something good…
He pressed a hand to Gu Yun’s waist, rubbing it leisurely. “Rest for now. We can soak in the spring later to help alleviate the pain.”
Gu Yun mumbled incoherently.
Afterwards, like this time, Gu Yun always seemed to be more soft than usual, agreeing to Chang Geng lazily and easily.
Thinking about it, Chang Geng realized with a faint smile, it was not a bad thing.