"Please..Hurry.."
"Take me, ni-san"

Luffy's submissive, whimpy cries echoed in Ace's ears.

His will caved in, crushing his ability to hold back. His instincts beginning to take over.
Luffy was like a piece of fresh meat to a famished wild beast.
Ace couldn't stop now.
He tightened his hold on Luffy's hips to prevent him from struggling.

Hearing Ace's ragged exhalation, Luffy knew he had hit a nerve. He smiled to himself, mischievously. Getting his cool older brother so hot and riled up..it excited him.
Clawing at the sleeping bag, bracing himself, Luffy twitched with anticipation.

"GAAAHH..!~"

Foreplay with just a single finger was no where near enough to ease Luffy's taut flesh. It was so tight, it pinched Ace's cock. His hips kept pushing, stretching Luffy open until he entered him all the way. Watching his little brothers ass swallow him up, only made him grow even harder inside of him.
Feeling Ace's penis bury itself even deeper inside, Luffy's hole began to spasm, clutching onto him firmly.

He was so tight that it was difficult for Ace to move.

"Ah.. Luffy.. You're squeezing too hard!"
"Please.. Loosen up.. Just a little"

Ace panted, his low voice sounded so intense and sensual, verging on desperate.

"N-NO!"
"You're just t-too.. big..!"

Luffy squirmed, crying out. His voice was tearful, yet somehow erotic.
It wasn't really a surprise that Ace had trouble fitting inside of his petite younger brother.
Though Ace was relatively young, his penis was extremely large, even for that of a fully grown-man.

"It.. It really huuuurts.. Ni-Sannnn!"

As Luffy sobbed, he pressed his face his face into the ground, elevating his hips and butt higher, allowing his brother easier access.

Ace noticed what he was trying to do. His cheeky little brother was playing the innocent victim, yet Luffy's honest body revealed his true desires.
Realising Luffy was trying to seduce him, Ace's blood began running hotter, burning as it coursed through him. Every bit of sense drained from his brain, gushing into his throbbing erection. He couldn't so much as think for himself anymore. The absence of his sense left him acting purely on urge and impulse.
Luffy's attempts at teasing were like a challenge to Ace. A challenge he most definitely wasn't going to lose.

Grasping Luffy's hips, so hard that his pelvis began to creak, Ace began thrusting into him.

"H-H..AHHH!~"

Luffy howled, his unaccustomed insides convulsing.
His eyes glistened, welling up with tears - his body's natural reaction to experiencing such unbearable pain.

He crippled in agony as Ace invaded his deepest parts, tearing his innocence to shreds.
Although his sense of embarrassment vanished long ago, Luffy's face was still red, pasted with a burning grimace.
The strain and discomfort afflicting his virgin passage caused his body to clench and contort uncontrollably.
His mind was bending, very near snapping.

Feeling Luffy's muscles seize around him, Ace could sense his brothers distress.

"Please.. Try to bear it.."

He whispered, His tender voice completely contradicted his brutal movements.

"I promise, it will feel good soon.."

Reassuring Luffy was all he could do. He was unable to even slow down, let alone stop.

Luffy's torment was driving him higher. His thoughts were getting all mixed up, he wasn't sure if he was in pain or not anymore.

"A-A..ACEEEE!~"

His aching gut was incapable of swallowing his screams any longer.

"Ahhh... A...ce!"
"Ace!.."

Luffy called out his name over and over.
Ace began letting out heavy, breathless moans in time to the sounds of their skin slapping together.
Luffy's insides were so warm and cramped. They sucked on Ace, encouraging each thrust until he was pounding Luffy roughly.

"Lu.. Luffy.."

Ace choked.
His deep, sexy voice sent shivers down Luffy's arched spine.
His tousled black hair hung in front of his face. Beads of sweat began forming on his defined stomach, giving his skin an almost oiled appearance.
The muscles in his hips and shoulders rippled with each movement.
His violent thrusts showed no signs of tiring.

"..You feel ..incredible.. Lu'!"

Luffy's heart fluttered at the sound of Ace's praise.
He felt much more relaxed. His insides were finally beginning to remember Ace's penis, rearranging themselves, adapting to its size. Luffy's hole had become a sex organ, tailored to perfectly accommodate Ace.

It was already clear that Ace had completely claimed him.

As his big brother began to fit snugly inside of him, something born from a different place than his pain steadily began to devour Luffy.
An indecipherable sensation melted through him, swelling rapidly in the depths of his chest.

"Nghhh.. GAHHHH!"

Luffy spluttered.

"How does.. it feel?"

Ace gasped, leaning closer to Luffy, hunching over him slightly.

Ace was starting to feel a difference. Luffy's insides were becoming more inviting, salivating at his presence. The new wetness was heightening his pleasure, allowing him to slide in and out at a faster pace. Not to mention the shlucking sounds, teasing his ears, were driving him wild.

"Soooo.. Good~!"
"Feels.. sooo.. Good!"
"So good.. Aceee~!"

He didn't mean to shout. His lewd thoughts somehow seemed to spout out, unconsciously.
Seconds later, as his jaw hung idly open with continual moaning, his mind came back, overcome with an urgent need for more.

He began rocking his hips back and forth, provocatively.

"Aceee..."

Still groaning, Luffy took a deep breath as he dug deep into his lungs, trying to find his voice once again,

"M-MORE..!"

He begged.

"WA..ANT.. MORRRE~!"
"Fuck.. Me.."
"HARDERRR~!"

Luffy implored, as loud as his tired lungs would let him.

Every shred of guilt restraining Ace snapped. Luffy's pleas granted Ace the assurance he needed. He was most defiantly going to seize this opportunity.
Right now, Luffy's body belonged to him. It was his to use and abuse to his hearts content.
Terribly graphic and explicit images raced through Aces mind. Each one depicting a new way in which he could torment and violate his younger brother.
A dull pop sounded in Ace's head. It was almost like the build up of pressure inflating his perverted mind had burst. A sudden tickle surged through his face.
He sniffed loudly, wiping his runny nose with the back of his hand.

Blood?
A nose bleed?!
At a time like this?!
Ace squeezed his eyes shut in self-disgust.

"ACE~!"
"HARDERRR!"

Luffy screamed.
Ace remembered that all this time he had been keeping his little brother waiting.
By now, Luffy was going out of his mind. Frantically grinding on Ace's huge erection.

"FUCK MY ASS..HARDER!"

Luffy continued attacking Ace with words, pushing him to his breaking point.
Ace's inner sadist tore through his loving demeanour.
He reached out an aggressive hand, catching hold of a few locks of Luffy's damp, rugged hair.
He yanked his hair-filled hand toward himself, forcing Luffy's neck back so sharply it almost snapped. Luffy's back contorted, arching violently.

"Tell me.. What you want"

Ace's tone had taken a threatening turn. He was enjoying hearing his proud little brother beg beneath him.
Experiencing this sort of dominance was really turning him on.

"I want ni-san to break me open as hard as he cann.."
"..and shoot me with his naughty juice~!"

Luffy yawped, feverishly.
It took a moment to register in Ace's head. Words truly were his weakness. Hearing his cute little brother speak such a way... It was his ultimate turn on. He could feel his whole penis begin to papillate, his pulse thumping against his little brother's insides.
Did Luffy really think he could handle everything he had? Ace wasn't about to go easy on him, after all.
As far as he was concerned, not only had Luffy given him permission to do as he pleased, he was begging to be completely annihilated.
He was going to have to take responsibility and accept the consequences of his words, whether he could take it or not.