* * *
The remark carried a teasing lilt, as if he was certain Adam must have had experience.
Isaac didn’t even give him time to deny it.
The sound of fabric rustling was the only warning before Isaac hooked a hand under Adam’s thigh and lifted.
“Ngh—!”
Something hot and hard pressed relentlessly against his entrance.
Even in his dazed state, Adam immediately realized two things—that Isaac had pulled down his own pants to free his erection, and that said erection was now rubbing against his rim.
‘Ah…’
The reality that he was about to be penetrated at any moment made Adam’s mind go blank.
His calf, lifted uselessly in the air, trembled faintly with tension.
Isaac glanced sideways at the leg he had hooked up.
“Why so tense? Didn’t I say you could do whatever you wanted?”
“Hah—ha, w-wait, just a second…!”
Without meaning to, Adam’s voice took on a pleading tone.
Even without looking down, he could tell just how thick and large the other man was.
Was this really human?
Did heroes have cocks bigger than ordinary men too?
Thoughts like these flashed through his mind at lightning speed before vanishing.
“It’s already too late.”
The moment Isaac spoke, the head of his cock pushed past the tight ring of muscle, spreading it open.
The sensation of something the size of a fist forcing its way inside made Adam’s face pale.
No way, no way, no way!
Even drenched in alpha pheromones, his rational mind wasn’t completely numb.
That faint remnant of reason screamed in a frantic voice—No, it’s too big—!
“Ah—!”
A high-pitched moan burst from Adam’s lips as the hardened length drove deeper inside.
His startled inner walls clenched down hard around the intrusion.
“Tch.”
Isaac also let out a sharp breath through gritted teeth, his handsome face twisting.
Clearly, even for him, the act of penetration wasn’t effortless.
But Adam had no room to appreciate the rare sight of the composed duke looking disheveled.
The overwhelming pressure, as if his stomach might split open, forced him to squeeze his eyes shut.
Tears pooled at the corners before spilling down his cheeks.
“Haa…”
Isaac was the first to regain his composure.
“Open your eyes. Breathe.”
“Ugh, ah… Aah, it’s…!”
The grip pinning Adam’s wrists loosened.
Instead, fingers brushed against his damp cheek.
Startled, Adam opened his eyes.
Through his tear-blurred vision, Isaac’s face came into focus.
In the quiet stillness between them, Isaac stared down at him intently.
Strangely, as Adam met his gaze, the pain tormenting him began to slowly ebb away.
The reality that their bodies were now joined sent heat rushing to his ears.
“Ngh—!”
A jolt of movement shook him, sending more tears spilling.
Isaac’s cock pushed even deeper inside.
Adam turned his head to the side, panting in distress.
Sweat-dampened red hair tickled against Isaac’s fingers.
Instead of thrusting in fully, however, Isaac did something unexpected—he wiped the sweat from Adam’s forehead with the back of his hand, then gently smoothed back his disheveled hair.
The soothing touch, as if urging him to relax, made Adam exhale shakily.
“It feels… strange.”
His voice came out hoarse and broken.
The hand carding through his hair stilled.
Then, in one swift motion, the cock buried halfway inside sheathed itself to the hilt.
The stretched rim quivered tautly around the thick, unyielding intrusion.
“…I meant to go slow, but—ha—it seems that’s impossible now.”
Adam wanted to ask why.
He couldn’t understand what had suddenly made Isaac impatient.
But the questions rising in his throat dissolved back into his stomach as Isaac’s brow furrowed—and then his hips began moving.
“…!”
The relentless thrusts robbed Adam of even the ability to moan.
Something as thick as a forearm raked over his insides again and again, without pause.
Each time, incomprehensible pleasure slammed into his skull.
Thud, thud! Lewd, wet sounds filled the bedroom.
“Ah—!”
Finally, the head of Isaac’s cock struck that spot—and Adam, belatedly, let out a sound caught between a cry and a sob.
As if that were the signal, his body jerked like a doll’s, and he begged Isaac incoherently.
“Ah—ah, please, there—ah, ngh!”
“There?”
“It hurts—ah, d-don’t press there, I can’t—ah, I—!”
The moment that spot was hit again, Adam’s slit twitched helplessly.
Soon after, clear fluid dripped down the length of Isaac’s cock.
The veins along the shaft glistened wetly.
Watching this, Isaac exhaled deeply.
“You seem to like it.”
“Ngh—!”
“Look. You’re coming again.”
Surprisingly, Isaac was smiling as he said this—not the mocking smirk from before, but something far more transparent and gentle.
“A few thrusts, and you’re already spilling? You’re insatiable.”
“N-no, I’m not… Ah—!”
“No? Are you saying my eyes are lying?”
Isaac moved his lower half slowly.
The veins bulging along his shaft dragged stickily against the sensitive walls.
The sensation of being thoroughly explored wrung a moan from Adam, laced with desperation.
His jaw clenched so hard that faint indents—like the marks of walnut shells—appeared along his skin.
“Pull yourself together and fulfill your duty.”
The word duty carved itself into Adam’s mind.
Isaac was right.
He was the one who had accepted an astonishingly large sum of money.
So he needed to gather his wits and serve his partner with everything he had.
But how?
In that moment, Adam did something even he didn’t expect.
He lifted the leg braced against the bed and hooked it around Isaac’s waist.
Behind the veil of his long lashes, Isaac’s crimson eyes flickered faintly.
A strange silence settled between them. Adam froze, breath hitching.
Should he beg for forgiveness?
He’d dared to wrap himself around the Duke’s body.
But hadn’t Isaac just told him to do his duty?
‘Ah, I don’t know. I don’t understand anything.’
Just then, Isaac’s cock slid back—only for the thickest part of the head to catch at his entrance.
With a single thrust, Isaac drove back in, burying himself to the hilt.
“Hah—ah…!”
Adam’s gasp tore free.
It felt like his body was being split in two.
But he had no time to linger in the shock—Isaac was already pistoning into him, relentless.
Thud. Slam. Thud.
Each brutal snap of Isaac’s hips drew slick, obscene noises from where they were joined.
Adam’s legs, still wrapped around him, trembled violently.
Pleasure crashed into him without pause, leaving no room for coherence.
“Ngh—ah, ah—too f-fast…!”
Adam sobbed, words failing him.
The heat, the friction—it was maddening.
The only relief came when Isaac’s cock dragged inside him, soothing the unbearable itch.
But even that was fleeting.
The moment the thrusts slowed, the need returned worse than before.
Lost in the sensation of his body burning, Adam rocked his hips.
Whether Isaac approved of his eagerness or not, his pace turned punishing.
Squelch. Thrust.
Every time the thick head grazed that spot inside him, Adam’s moans pitched higher.
“Haah—ah, I’m gonna—ah—I’m gonna—nh…!”
Gasping, Adam shook his head. Isaac, who had been watching him intently, finally spoke.
“You’re going to come?”
“Hng—hah!”
“Interesting,” Isaac’s voice was sharp, metallic, strained with restraint.
“I haven’t even touched your front, and you’re already close.”
Adam looked up at him, his green eyes brimming with conflicting emotions—confusion, overwhelm, pleasure, rapture.
Isaac scoffed at the unreadable gaze, as if Adam couldn’t decide whether to beg for mercy or more.
“Fine. Show me. Let’s see what happens when a man comes just from being fucked.”
The moment the words left his mouth, Isaac seized Adam’s hips.
With a single brutal snap upward, Adam’s legs fell limp against the sheets.
Darkness swarmed his vision—a tidal wave of pleasure swallowing him whole.
“Ah—ah—hah—!”
Each drag of Isaac’s cock drew broken whimpers from him.
Adam clutched the sheets, teeth gritted.
It was too much.
* * *