Rumble of Thunder

Loud sucking and slurping sounds accompanied Rumble's great oral effort on his brother's gigantic cock head.

Sat on the end of the bed, arms propped up behind him, Thunderlane watched with aroused fascination as his flare was orally worshipped and thoroughly service by Rumble's mouth.

Delicately lashing its crown with tender licks, engulfing its entirety around his lips and forcing his tongue into its slit, kissing it passionately while massaging the shaft below it; Rumble was really getting into it.

Rumble was sat in Thunderlane's lap, facing him, using his brother's enormous thighs as a seat. Thunderlane's rock-hard pillar of flesh rose between them, Rumble pulling it in to his eager mouth. Their balls were mashing together between their legs as Rumble pressed in to give the midnight-black monolith before him his full appreciation. With every hard suck or squeeze, Thunderlane tensed and his enormous muscles swelled along with his erection which couldn't help but deliver a mouthful of pre into the ravenous mouth of its benefactor.

By now, the flow of pre-cum from his slit was constant - a visceral plea from his enormous, sloshing balls angrily demanding that they be allowed to expunge the enormous load bloating them incessantly. How could he refuse them? They'd been getting bigger and bigger and bigger, and with their expansion the desire to orgasm and empty them had only grown more pressing. He laughed internally to himself. Okay, perhaps empty was a little optimistic, that would need more than just one orgasm.

Rumble could tell his brother was getting close. He could hear the churning, roiling protests from the immense bowling ball-sized testes below them both. He tightened his grip and stroked harder and faster, his free hand reaching down to fondle and grope the giant gurgling gonads which would soon be convulsing, straining to perform their sole function.

Barely cogent from the ocean of pleasure bathing his mind, Thunderlane could only respond by reaching down to his Rumble's lower back and forcefully grabbing two handfuls of thick booty meat. Even in the palms of his big hands, there was plenty to spare.

"Gonna - guhhhnnn..."

Thunderlane could hold back no longer, he was swimming against the tide. That tide just happened to be white and sticky, as his brother was about to find out. He squeezed the globes of flesh in his hands and reflexively pistoned his hips upward half a foot, jamming his broad cock head into Rumble's throat just in time to receive the monumental load that was stretching out his nuts.

He growled deeply in his throat and screwed his eyes shut as the orgasmic sensation spread from deep within his groin all the way up to his quivering flare, and when it reached the tip, which was forced to expand to make way for the oncoming flood, he cried aloud as a thick, potent blast of sperm forced its way down Rumble's throat before he could even swallow - bit swallow he soon did, the next vast load of off-whote cream blowing out his cheeks and dribbling down his chin. Shoom, gulp, shoom, gulp. Thirty seconds of swallowing complete mouthfuls of liquid love before Rumble pulled away for a breather, still kneading the bowling balls in his hands.

Thunderlane seized his thick cock in both hands, steadying the base with one and jerking off the top half with the other, painting his brother's face and chest with the last two or three powerful spurts of jizz before the river became a stream, and then a trickle. Shivering in the pleasure of afterglow, Thunderlane lifted his dick up to his mouth and swirled his tongue around and over his head. It was very sensitive after his recent orgasm, but he could tell his dick wasn't done yet - let alone his balls.

He slowly but surely came down from his high, smirking at Rumble who looked pretty pleased with himself.

"Been practising?"

"I guess ya could say that."

Like his brother, Rumble did enjoy more than a little self-fellatio when he was alone.

"Heh. Welp, I'd better return the favour, huh?"

Thunderlane took Rumble's waist in his hands, lifting him up without difficulty.

"Wha-woah!"

Thunderlane stood up beside the bed and gently tossed his brother onto it, then knelt in front of him, pulling his boxer briefs down and off his legs. He surveyed the foot-long length in front of him and licked his lips.

"Been waiting a while to do this. And I guess you've been waiting a while to get it too."

Rumble could only bite his lip and smile adorably, his insurmountable erection like a heart on his sleeve.

Not one to beat around the bush, Thunderlane dove in. He pushed his hands under his brother's back and held him from behind as he went to town on the light-grey length stretching out to meet him. Twelve inches was certainly an impressive size, but Thunderlane's mouth was big enough to take it all with the tip just tickling the back of his throat. He casually slid his head backward and forward, maintaining an overpowering suction on Rumble's dick.

"Unh... ah... y-yeah..."

Words failed Rumble. That was sign enough to Thunder that he was doing a pretty good job. So, he took it up a notch. He brought his hands around from Rumble's back and brought them into play as well, one cupping Rumble's balls and the other firmly grasping the lower half of his penis. With a few twists, squeezes and strokes, combined with his incessant oral efforts, Rumble was forced right up to the edge rather quickly.

"Aaah!"

He cried out as his cock lurched hard in his brother's hand, fattening as it forced his load up and out, coating Thunderlane's tongue and flowing down his throat. He could only moan as the orgasm washed over him, each spurt no less pleasurable than the last. Thunderlane greedily swallowed every last drop as each rope raced out to fill his maw.

Rumble continued to convulse slightly as he rode the wave back down to pleasant afterglow, panting quietly as Thunderlane drew back and swallowed once more.

"Mm, think I gave you a pretty good run for your money. Y'enjoy that?"

"Mhm."

"Great. Wanna... go a little further? I mean, if you're up for it."

Rumble giggled as Thunderlane twiddled his thumbs.

"Hm, lemme think about that, uh - yes."

Rumble turned over onto his stomach. Thunderlane got his first view of that incredible booty unclothed - and what a view! It looked, well, perfect. Big, supple, round, wide; a butt without equal as far as he was concerned. He drew forward onto the bed and got down on all fours, lining his head up with the bountiful behind underneath him. He slowly lowered his hips, one hand steadying his length and keeping it on target.

Rumble's ass was so soft that Thunder's head parted its ample cheeks with virtually no effort. Further in, though, it was incredibly tight. Thunder was a little anxious but it was Rumble that spurred him on.

"Fff-fuck, keep going."

He pushed with his hand and his hips together, gradually overcoming and widening the opening he was fervently assaulting. His brother's moans rose in pitch as the first inch cleared his back door. It was coping surprisingly well, adapting quickly to the sheer girth of the black monolith demanding entry - the cascade of warm, creamy pre was definitely helping too. Before he knew it, a foot of his throbbing manhood was lodged inside. Rumble was in bliss, only partially cogent but thoroughly enjoying himself. Thunderlane chose not to go any further as he only got girthier towards the base of his shaft and the going was getting more difficult. That wouldn't be a problem, though - the first foot was proving to be more than enough for both of them to get satisfaction.

Thunderlane slowly drew back, then drew forward slightly more quickly.

"Aaaah, ah!"

Each motion in either direction drew cries of pleasure from them both. Thunderlane picked up the pace, slowly but surely, until he had a good rhythm going. He huffed and puffed with each push of his hips, Rumble's big ass jiggling and shaking with every thrust. Faster and faster, their intimate lovemaking audible from quite some distance away - and neither of them could care less. Thunderlane plowed on with wild abandon, reaming Rumble's rear passage feverishly.

Only a few minutes in, the overwhelming tightness combined with the soft plushness of that sublime butt pushed Thunderlane over the edge.

"Nngh, ffugh, c-cumming!"

He thrust in as far as he dare, exploding deep inside Rumble. A gout of jizz spurting forth and almost immediately pushing out his brother's stomach. Thunderlane gripped handfuls of bed sheet as he came again and again, thick blasts of cum blasting into the writing Rumble. Despite an orgasm not long ago, his big, fat balls were relentless in their stuffing of the little grey stallion still filled with inches of hard, thick meat. Rumble's shaft had been stimulated by the rubbing of the sheets against his hard length pinned beneath him, and he came not long after, his own sizeable load loosing and soaking the duvet with a series of potent discharges.

After a few more big spurts, things began to calm down. Thunderlane almost collapsed onto his brother but managed to hold himself up as he pulled his semi-hard shaft out of its hidey-hole. Then he slumped down beside his brother, one arm hanging off the bed. Rumble slowly turned over and surveyed his swollen cum-belly, as well as the large damp area his own release had created. In no mood to change the bedding now, he just collapsed onto his brother's wide, burly torso and drew his legs up, head nestled between two pillow-like pecs.

"Mm, have fun?"

Thunderlane smiled lazily.

"Plenty."

As the evening sun began to disappear, the room darkening, the two of them drifted off together.