Slowly and steadily, Broos pistoned in and out of his companion, hands firmly gripping Nakk's ample hips. His eyes closed, mouth wide with heavy breaths as the mesmer simply lost himself in this moment, head resting over Nakk's shoulder as he gave the engineer a gentle nuzzle upon the cheek.

"I'm getting close... Cogs! You feel so good, Nakk...!"

"Haa--ah--don't stop! Nngh! Mmf~!"

A hand reached backwards, tightly grasping and squeezing Broos' rump, pulling him into each thrust with almost instinctual need. Nakk bucked his hips in perfect rhythm with his husband's, a lustful pant escaping him each time as shivers coursed up and down the length of his spine. 

And the mesmer could only oblige, feeding every inch of himself to Nakk as best he could, carefully aiming each thrust. His own right hand wandered forward, lithe and dextrous fingers wraping around Nakk's own ample girth, beginning to vigorously stroke its length in time with their rutting. It pulsed and throbbed in time with every tightening spasm of Nakk's insides, as Broos felt the head of his cock hitting that small but familiar knot within his lover's depths, coaxing a thick, heavy spurt of clear pre out the boy on each thrust. It oozed down onto the mesmer's stroking hand, quickly smearing and coating both cock and fingers in a warm and sticky lubricant, lending even more lewd noises to the song of their lovemaking.

"Oh gods.. Oh... N-Nakk!!" he blurted out, his eyes wincing shut as he felt a familiar tightening in his loins.

Nakk reacted quick as lightning, even in his lustful haze, suddenly pushing off of Broos and twirling around, down onto his knees. Broos' eyes flew open as he looked down, to the sight of his beloved with open mouth right before the pulsing purplish-grey cockhead, both hands greedily stroking his length, the engineer's warm breath panting out over Broos' slick and senisitive skin. It was simply too much for the mesmer.

His hands grasped onto Nakk's shoulders as he nearly buckled over as he felt the warmth of his seed rising, jaw falling slack as Broos groaned in ecstasy, barely able to stand as he felt his cock erupt below. 

Nakk barely even blinked, steadying his beloved with one hand, and stroking out that heavy load with the other, as rope after rope of thick and white-hot spunk pulsed out of Broos, right onto the engineer's wide and joyous smile. Broos' balls curled up within their sac, pulsing rapidly as his cock spattered his seed all over Nakk's face, thick rivulets of it trailing down and drooling onto his chest as Nakk hummed loudly and happily behind that cheshire grin.

And as Broos felt his legs slowly begin to steady, Broos released his right hand, reaching down and needily jerking his own twitching member. Nakk's satisfied humming quickly turned to moans as the engineer felt his own load building inside him. As Broos fell backwards onto his rear, exhausted and eyes bleary in a post-orgasmic haze, Nakk scooted forward, working his madly-pulsing shaft. 

Broos' vision cleared just in time to witness Nakk throw his head back with a loud cry as he pressed their cocks together, rapidly stroking both hands up and down their joined lengths before Nakk's thick cockhead burst with a torrent of his own, adding to the already impressive mess they'd made. 

Nakk's buttocks flexed inward as every muscle in his body tensed, hips rocking hungrily back and forth, frotting against Broos's still-hard cock as the boy gave every drop of cum he had inside him. Pulse after pulse of thick, hot cum continued to spurt from Nakk's dilated slit, completly covering Broos' crotch and stomach. And Broos reacted the only way he knew how--quickly learning forward and pulling Nakk into a kiss, moaning with him as he let his beloved savor this much-needed release.

Moments passed in ecstasy, and inevitably it died down and began to fade, the couple collapsing in an exhausted heap upon the bed and drifting off within each other's arms.