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Still bursting with adrenaline from the battle against yet another nameless villain out to destroy the world or whatever Stark was looking for something to release that pent up energy, so of course he went to his best friend and best advisor: the Captain to get some advice. However, for some reason following said advice is how they ended up in starks room frantically tearing each others clothes of and sharing unholy amounts of saliva.
Having been partners in 'heroing' and best friends the Captain had suggested a 'friends with benefits' arrangement, a way to use up the adrenaline reserves without the need for alcohol of unhealthy amounts of food; a good way to also improve friendships. This, as intimate as it may be was merely a business transaction, a mutually beneficial way to blow off steam; as very consenting and very horny adults:
Stark knelt in front of Steve staring up at him with a smirk, giving him no opportunity to catch his breath before Stark had his tongue wrapped around his cock licking and sucking his way up and down the shaft before taking the whole thing in his mouth all while keeping his hooded eyes trained on Steve. Like a starved animal Stark lapped up the precum that oozed out of the tip, savouring the salty taste and relishing in the deep groans of affirmation he received from the man above him. The man who kept his sky blue eyes focused on Stark, the way his pink lips were lewdly stretched around his dick, the feeling of hitting the back of Starks throat with the tip of his cock every time stark swallowed it whole, even the way each change in pace or action reverberated through his whole body. The one thing he took most notice of however, was the fact that stark was clearly enjoying this, if his achingly angry looking hard-on was anything to go by and he would be lying if he said that had no affect on him, because it did, it had an effect.
While Stark skilfully bobbed his head Steve couldn't help the desperate noises that escaped past his lips continuing to let his hungry eyes wander over the lewd image that was Stark deepthroating him, he also let his hands wander threading through the messy brown hairs and relishing in every feeling.
Suddenly Steve yanks Starks hair pulling him off his dick, looking down at starks dilated pupils surrounded by that thin sliver of the usual brown hue, rouge face topped of with the rats nest of a oak brown hairdo he now had going on, Steve muttered a breathless curse before pulling him up for a kiss they both locked their lips together, before Steve bit Starks lip making him gasp, Steve seized the opportunity to push his tongue back into Starks mouth immediately dominating leaving stark a mess. As agile as a dancer and as unperturbed as humanly possible Steve skilfully maps out Starks mouth with his tongue leaving the poor man breathless and yet desperately wanting more. Fully prepared to fulfil those desires he pulls Stark down to meet him as Steve lands heavily on the mattress with Steve sat at the very edge of the bed and Stark nestled in his lap now as complacent as putty in his arms blissfully happy to be fulfilling the larger man's desires, while Steve 's tongue was still set on mapping every corner of starks mouth his fingers carefully blaze trails of sparks down Starks spine before settling between his legs. Steve mercilessly thrusts one finger deep into Starks entrance earning a deep, drawn out moan from him, giving Stark no time to adjust he begins dragging his finger in and out of starks ass, making sure to hit deep and hit hard he drags his finger against Starks walls causing waves of pleasure for Stark which were then loudly expressed vocally by long, needy groans coupled by breathlessly uttered curses.
After a short while of messy kissing and brutally thrusting his finger in Starks ass Steve decides to push in another long, thick finger bringing his two fingers in and out of starks entrance before deciding to try a different motion, carefully separating his fingers mid thrust he began to stretch starks abused hole out further in a sudden, calculated scissoring motion. The moment Stark feels the extra stretch he mewls in pleasure now too far gone to pay any attention to anything other than the strong, calloused fingers in his ass along with the soft, caring look on the face of the man in front of him, the sharp curve of his jaw in contrast with the softness of the hair that he now grasped in his hands, the yellow sheen that came with those golden locks, his plump lips, even the tongue that was still working its way down his throat and the fingers in his ass. Good God the fingers in his ass! After the third finger Stark was beyond help, to say he was a mess was a criminal understatement however, Steve began carefully pulling out his fingers grinning at the shameless whine of disappointment that he heard from Stark. Steve eventually aligned his tip to Starks gaping entrance before briskly pushing forward, hip hit hip and they both groaned in ecstasy, relishing in the feeling of having finally been joined, along with the satisfying feeling of having reached the pivotal point of the night. Stark moaned with the pleasure of having been filled, to have finally been stuffed full of the cock he had been coveting since the night had begun and 44Steve groaned with the pleasure of having found his dick buried in the tight wet warmth of Starks ass.
Allowing both him and stark to adjust, almost not wanting to have to shatter that moment, he began to set a steady pace, thrusting into Stark with vigour while they both gutturally groaned and shamelessly moaned like animals in heat, Steve pushed into starks weeping hole causing his dick to be buried deeply within the warmth that was Stark, pulling out almost entirely before thrusting back in again with stark bouncing up and down in his lap in time with his movements. this relentlessly continued until Steve's dick brushed past a certain spot within Stark that caused the man to practically spasm with pleasure. Steve's face contorted into a grin that could almost be considered wicked, he then lifted stark up just so that 's tip remained in starks entrance before allowing him to drop back down causing Steve's dick to directly hit the sweet spot that had caused stark so much pleasure making him scream Steve's name in sheer ecstasy before Steve began to hit that spot relentlessly with every thrust giving Stark no time to recollect himself before he picked up the pace. Stark overwhelmed with pleasure felt like his body was on fire, he moaned Steve's name like it was the only thing keeping him alive, soon he began to feel the pressure build up in his gut, further fuelling the fire making him cry out his demands for Steve to go faster. Steve of course happily complied, now also feeling the bubbling coil in his gut urging him to further stake claim to the one he is fucking, leaning forward towards Starks neck he bites; he bites hard. silky beads of blood pool where his mouth tore into the smooth skin beneath his teeth causing stark to groan pushing him over the edge and he comes in the near non-existent space between their stomachs, coating them both in a sticky layer ow white. Urged on by the other Steve reached his orgasm shortly after, further filling Starks ass with his cum before pulling out and allowing the liquid to slowly trickle out of starks ass and onto Steve's thighs. Leaning back down towards Starks neck Steve carefully licks away the blood that had began trickling down starks torso, catching one of his nipples between his teeth in the process drawing out a small noise of surprise from Stark.
Both practically glowing and extremely sticky after their more than heated session of passion they roll off each other and head to the very convenient ensuite that was in Starks room to clean off in the shower, after towelling off and getting into clean clothes they both decide its probably wise for them to just sleep in starks room for the night. So Steve went to sleep on the sofa and Stark crawled back into his own bed.
Little did they know that the walls of Stark tower are rather thin, and it just so happens that the rest of the heroes had been in the building at the time, meaning those two would have to face hell if they even set one toe outside of that bedroom, particularly because no one else knows the true reason for this rather strange occasion, but I suppose that's a story for another time.