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                 Love between the Shelves                  
                     -by MilleniumMan-                     
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                 Love between the Shelves                  
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Love between the Shelves
“Okay so just to conclude the continuing actions of war between the regions in the north and the east of Appleloosa during the earliest time period since its founding, we can look back at General Desert Glow and his importance in the earliest talks about peace treaties, which eventually lead to the end of the...”
“Boring!”, the voice of his friend suddenly interrupted Dusk Shine, until now he was trapped in an almost hypnotized state of fixation on the history book he was loudly paraphrasing out of. Now though he quickly opened his eyes, unable to close his mouth and utter more than a simple, shallow sound of confusion about how to react to Rainbow Blitz sudden comment.  
Three seconds passed until his twitching left eye and his slowly closing jaw, followed by the sound of grinding teeth indicated that he had returned to the real world again and that he wasn't particularly happy with his buddy too.
“Alright, go on mocking me and my wish to educate both of us in a entertaining manner.”, the purple colored stallion sighed, his legs stretching out and lifting him back into a higher position all the while his magic levitated the heavy black history book back into the empty spot on the shelf where it belonged.
“Is that really what you think off when you invite someone over for an and I quote: “entertaining afternoon.” ?”, Rainbow Blitz asked, rolling his eyes as he watched Dusk's magic fidgeting around with the books to fill as much space as possible inside the bookshelf with each piece of literature he owned.  
“Dusk... I don't think the books will be mad at you for wasting a total amount of two inches of free space.”, his voice sarcastically uttered.
“There will be at least four inches of space left once I'm done here... Just shut up okay?”, he continued to grind his teeth.  
Dusk Shines blue friend wouldn't even have been remotely as distracting right now, if it wasn't for his desperate need to fly around inside the library. Even though granted it was more of a gentle float half a full grown ponies size above the wooden floor.  
And even that wouldn't have been annoying in the slightest, if Rainbow Blitz wouldn't move back and forth around Dusk Shine, from left to right in a half circle motion.  
“Okay, the book is back where it belongs. So what do you suggest we should do now to entertain ourselves?”, Dusk asked him, sighing and with this letting out the majority of frustration from this argument left inside of him.
“Well we could always...”, but Rainbow Blitz was now cut off in the middle of his sentence as well.
“Say: “have a race” and I promise I'll tie you to the nearest chair and read you the entire Equestrian Encyclopedia from A to Q!”, Rainbow Blitz was met with a very determined look on his friends face, so determined in fact that he quickly swallowed this very thought and started to look around all corners of the room trying to come up with a new end for the sentence.
“Uhm... I-I was actually going to suggest we could pay Butterscotch a visit.”, a safe turnaround of the situation, especially since Dusk's magic already grabbed the Encyclopedia and started to browse through its pages.
“Well that might actually be a good possibility.”, a little bit of disappointment rested in his voice whilst his magic was slowly putting the book back where it belonged.  
“But I'm afraid he is currently abroad studying some creatures of the Everfree Forest. So do you have any other ideas?”  
It took Rainbow some time to come up with any new ideas actually, during the following two minutes he would just continuously fly through the library, enter all possible angles and ways contained in it and fly all the way back only to repeat this procedure again.
“Do you necessarily want to stay here?”, he finally asked Dusk, hoping that the answer might make it a lot easier for him to come up with something.
“You mean inside here?”, Dusk asked and Rainbow nodded in response.  
“Not really, in fact now that I think about it going out for a little while sounds pretty promising.”
“How about we go take a little hike?”, a quick suggestion entered the room.
“You mean literally hiking or just flying up a big mountain?”, Dusk questioned it instantly though, a skeptical tone leaving his mouth.
“...A little of both... Perhaps.”, Rainbow's eyes started to rapidly move from left to right and opposite.  
“How is this even possible?”, he suddenly growled.
“What?”, his friend rightfully asked, his wings enfolded from the surprisingly loud noise.
“To be this bored, period. I mean we don't seem to be in the mood for anything, otherwise we'd already be on our way to some hill, or am I wrong?”, he asked the purple Alicorn.
“I can't deny, that's a good argument. But stuff like this just happens, sometimes friends are bored despite having a nearly limitless amount of activities they could do.”, Dusk explained.
“I suppose it's because we already did most any thing together that's available didn't we?”, Rainbow stopped floating now, he laid down on a nearby table, his fore hooves working as a pillow for his head and his hind legs resting on the seat that stood in front of the table.
“Did we do everything possible already? I mean we fought Monsters... plenty of times actually so that's out of the question. We already climbed high mountains and faced dragons. We traveled all across Equestria, solved problems in different locations than Ponyville, solved problems inside of Ponyville... I think I start to get what our problem is.”, Dusk suddenly stopped talking.
“What do you think is the reason?”
“We are way too used to doing absolutely spectacular things, so leaning back and just spending an afternoon with something less exciting just feels... sorta incomplete.”, he started to rub his chin with his right hoof.
“So the logical conclusion of this would be to do something we haven't done before that's at least as exciting as doing all those amazing things?”
“I guess so.”, Dusk answered half halfheartedly, he continued to rub his chin and was now also walking up and down in the library.  
“But seriously what would be as exciting as battling monsters together or spending days on an exciting trip through the world?”, Rainbows ears suddenly sharpened, his eyes opening wide and the pupils inside growing tremendously.  
His relaxed pose was slowly broken as he watched Dusk take his stroll up and down the library’s hallway. They became particularly stuck on his friends purple bum, despite the sight of it being almost completely blocked by his dark purple tail he could always catch a glimpse of at least a little bit of Dusk's tight, squeezable buttocks.
For a short moment he bit his lips, sweat dripping down his forehead as the result of a sudden impulse of embarrassment.  
Determined to finally answer Dusk he closed his eyes, took a deep breath and jumped back into the air, quickly flying over to the point where his friend was just now turning around. He did this in the perfect moment for Dusk to almost comprehend what was about to go on, although he only found himself able to watch the shiny pair of blue lips that Rainbow called his own form a gentle pucker and drew closer and closer until eventually finding their destination and pressing a sweet peck on his mouth.  
Both stallions immediately started to blush, although Dusk kept his eyes open as an opposite to Rainbow Blitz, at least for the moment.  
Rainbow collided with him at a rather quick pace and thus he put a certain amount of dominance and power into this kiss, pressing Dusk's purple colored mouth not only back into his snout but practically flattening it.
This admittedly pretty moment was drawn out a little longer than what was to be expected considering that this was a spontaneous kiss, but none of these two actually wanted to break it. Dusk Shine wondered just how his buddy's lips could feel so smooth and soft to the touch, all the while constantly breathing in his sweet scent as a result of their snouts being pressed tightly against one another.  
It felt good and relaxing to kiss Rainbow, so it came as no surprise that soon enough Dusk's eyes fell shut as well and his head tilted a little forward to share the kiss.  
Although sharing may not be the most fitting word to describe just what he did, seeing how he was only seconds away from getting a little bit more dominant than how Rainbow Blitz was so far.
In a more than surprising moment of bliss, Rainbow's eyes jumped open and his body started to tremble a little.  
Dusk had just used the adhesive connection between their lips to open his buddy's mouth and inject his warm, jiggly tongue into Rainbow's maw.  
Upon entering he quickly made himself comfortable, first off exploring the insides of his friends mouth to the fullest possible extend. His tongue moved quickly from one corner of his maw to another, rubbing along his cheeks and gum as well as teeth in the process. The first actual contact he made with Rainbow's tongue was nothing more than a mere brush of his tongue's tip rubbing along its new companion before casually passing further.  
This was the moment when Rainbows hind hooves landed on the floor without his wings folding back into their casual form. Not to mention that Dusk's wings quickly jumped into the fully enfolded state.  
His tongue immediately moved back and started to move directly into the place where he originally touched Rainbow's, hoping to be able to recreate this astonishing rush of pleasure again. Luckily Rainbow never moved his tongue away so that it could soon get to taste its counterpart entirely.  
For a few seconds Dusk would just rub his tongue back and forth on Rainbows, simply because he wanted to cherish its feeling and the taste of his thick, sticky Pegasus saliva. Of course he eventually had his tongue sink below Rainbow's and start rubbing it from this point on too, however this first taste wasn't lasting much longer thanks to Rainbow tilting his head backwards and breaking the kiss, a thin line of the special Pegasus saliva connecting the tip of both tongues even after the kiss.
Dusk Shine was still caught in a rather mesmerized state it seemed, since he only started to open his eyes slowly after a few seconds passed and even then he still wore a rather lovestruck seeming expression on his face for a few more seconds.  
“Uhm... You okay Dusk?”, Rainbow eventually asked.
Luckily Dusk was still able to hear him, quickly shook his head and returned to his more or less usual appearance.  
“Wha...? Oh, oh yes! Yes, I'm alright... Uhm... You know... Uhh... What was that?”, his stuttering voice eventually managed to get a solid question out.
“Well you see... I... I think that you look really hot for a while now. And because of just how boring this day was so far... and because you asked what exciting, new things we might try out. I decided to just... go for it.”, Rainbow Blitz explained himself, practically getting a heavier blush with every single new word he said.
“A good solution definitely.”, Dusk moaned, slowly licking his lips.
“I'm glad that you feel that way, makes this whole situation way less embarrassing.”, Rainbow begun laughing.  
“And besides this is theoretically at least the ideal way to kill our infinite boredom, wouldn't you agree cutie lips?”, his laughter intensified after uttering that last, teasing statement.
“Very funny.”, Dusk Shine smirked himself.  
“I just accepted what you started and went through with it. Or at least I started to before you broke the kiss.”
“Hey! I thought that it might be necessary to talk about it.”, he wasn't laughing any longer at this point but still continued to smirk this statement.
“And now we did talk about it and we both agree that we liked it... I think.”, Dusk wondered for a moment.
“Yes I enjoyed the kiss too.”, he only waited for Rainbow to give him this response.
“Okay, then what are we waiting for?”, Rainbow Blitz started to feel as if he made a terrible mistake, maybe such an affectionate Dusk Shine wasn't a particularly good thing for him. On the other hand though he was really anticipating whatever might follow this situation and desperately wished to go through with it.
“Wait!”, the blue colored stallion with the rainbow colored mane managed to speak just before Dusk could close his eyes and go on kissing him. (he did already lay his right hoof around Rainbow's neck)  
“Shouldn't we first discuss how far each of us is ready to go?”, he tried to rationalize with his friend.
“Actually I wanted to let everything that does happen, happen spontaneously. But alright, what do you think should be the point where...”, he started to talk only to stop all of a sudden and press his firm lips quickly against Rainbow's, returning the flattening thing from before. (only for a few seconds until Rainbow Blitz forced his lips back so the forces were basically equal again, but still)  
And without any warning whatsoever he just entered his friends mouth once again, his tongue instantly hasting forward to start licking and rubbing Rainbow's to his hearts content.  
Yet again mesmerized by the thick taste of the Pegasus saliva, Dusk suddenly begun to wrap his tongue partly around Rainbow's, just before beginning to squeeze it a little in his grasp.
At a point where both of their tongues were tightly hooked into one another he quickly leaned back and broke the kiss, Rainbow (whose eyes had been open this entire time) being able to watch both of their tongues hang together, only so he could pull Rainbow Blitz against his own marvelous and glossy looking pucker now. (His lips looked extraordinarily shiny ever since he licked them with Rainbow's preening saliva)  
Now that the action continued in his own mouth it became far easier to just wiggle hist tongue around Rainbow's and squeeze it tightly.  
Simultaneously to this sudden shift of dominance, Dusk Shine proved his risen lust and power in one go by throwing his friend over and lingering over him as they continued to make out, only with Rainbow laying on the ground.  
At this point both stallions had grown quite aroused from this intensive smooching, Dusk Shine in particular already had a remarkable erection to show and the black dong of Rainbow Blitz wasn't just laying down softly either.  
Still, after taking a quick peck at Rainbow's limb penis he started to think that a little help couldn't hurt and that was when the purple, translucent aura of his magic started to hull both his horn and the horse cock of Rainbow.
Hot air suddenly streamed into his mouth and he clearly heard the shallow sound of Rainbow's voice calling out in sexual pleasure.  
He begun moaning, understandably so considering that his cock was suddenly engulfed in the warm and tight, yet soft grip of Dusk Shine's magic.  
The aura of purple Unicorn power fit around his at this point rock hard member like a glove, constantly applying smooth pleasure all over it.  
Simultaneously a small portion of his aura was also starting to jerk off the happily twitching Pegasus, it continuously rubbed up and down his shaft.  
After doing this for a few seconds he realized that Rainbow stopped giving him the slightest forms of resisting during the kiss and he simply moved back up and allowed Rainbow's head to lay down on the ground.  
“That's actually kind of adorable.”, he thought, giggling as he looked down on his aroused friend. Rainbow's left leg was constantly kicking in the air as reflex, his tongue hung out of the side of his mouth and his eyes might have just as easily been replaced with spirals considering just in what a hypnotized fashion they were rolling around.
Only after the sensation of making out with him was removed from the palette of influences on his body did Rainbow slowly regain consciousness.  
“Wakey wakey!”, Dusk Shine greeted him with a laugh.
“Oh come on! Using your magic is just unfair.”, he claimed.
“Still it worked rather efficiently. From the looks of it I'd say that our cocks have grown equally as hard now. What do you think?”, he asked the blue colored Pegasus.
“Sure seems that way.”, was the reply he got.
“In that case let's make sure, shall we?”, Dusk grinned and took a step forward, then quickly but carefully plunging his junk down on Rainbow's, so that both of their shafts would press against one another.  
“Ahhn!”, both stallions immediately proceeded to moan loudly.  
“Honestly it's a little tough to tell from this angle, but I think they don't lay even on one another.”, Rainbow suddenly uttered before he started to move his hips up and down, immediately beginning to rub his shaft against the one of Dusk Shine.  
In the proceeding few seconds the two of them continued to moan louder and clearer, each one of them getting hotter by the minute.  
Eventually however, the frotting became a little too much for them, their muscles relaxed too much and Dusk simply rolled over on his back, right next to Rainbow Blitz.
“This is heavenly!”, Rainbow laughed in between moaning.
“I agree.”, Dusk giggled.  
“I think you taste fantastic by the way.”, he smirked further.
“Same here, I love the way you taste, not to mention your scent.”, Rainbow's head turned around and his nostrils started to inhale a whiff of Dusk Shine's odor, another loud moan immediately following this.  
Obviously noticing what he did, Dusk Shine also turned his head around and started to sniff his friends scent for a moment.  
Said time span however quickly increased and Dusk soon started to rub his hooves along his cock whilst inhaling the sweet air surrounding Rainbow Blitz.
“I can only return that. You smell really good!”, Dusk laughed.  
“Could you possibly do me a small favor?”
“What kind of favor?”, Rainbow asked in return.
“Sit on my face.”
“...Excuse me, what?”
“Can you please sit down on my face? You're acting as if this is some kind of perverted thing to do.”, Dusk Shine started to laugh.
“Geez. Alright, I'll do it. I have no idea why you'd want me to do this but who cares.”, Rainbow sighed with a slight grin on his lips and lifted himself up again, he walked over Dusk Shines body. Once again Dusk Shine licked over his lips, he closely watched as Rainbows blue buttocks grew wider in his sight, tiny pearls of sweat dripping down his rich flanks and his naughty bits.  
Slowly he sank his hindquarters down towards the snout of Dusk, whose eyes were already widening happily in the gleeful await of the sexy rear making close contact to his face. Rainbow's legs still held him lightly above the ground so that Dusk wouldn't have to carry the entirety of his weight alone.  
“I really wonder what you hope to achieve with this, but as long as it makes you happy I won't argue with yo...”, Rainbow's eyes suddenly opened up widely and he found himself forced to gasp for a moment.  
He felt something wet and soft running along his balls and slowly working its way up to his soft anus.  
Dusk Shine started to lick along his anal ring first, then only pushing the tip of his tongue into the middle of his butt and feeling all of the tiny folds of it.  
He continued to push until his tongue finally entered Rainbow's ass and he was able to go on lubricating it with his saliva from the inside out as well.  
His partner was currently enjoying this thorough tongue bath, all of his body feeling limb and his torso almost falling over because of this.  
He was still going on moaning just like Dusk never stopped creating a ton of slurping sounds from underneath him.  
He was apparently very pleased with licking his friends ass, just as much as feeling it since Rainbow soon felt his hooves pushing into his soft buttocks and squeezing them.  
A shallow breeze brushed through the blue fur of Rainbow's butt and gave him a slight distraction from the moist sensation of Dusk Shine's tongue exploring his private areas a little more. Of course it couldn't completely cover that feeling, especially since this stream of air was also caused by Dusk. His twitching nostrils happily went back to inhale the thick scent of his winged buddy.  
“Woah!”, Rainbow Blitz suddenly exclaimed in surprise, now that his rear was thoroughly lubricated it seemed like Dusk decided to take another approach at pleasing him, his hooves moved over to Rainbow's lap and quickly started to gently squeeze his long shaft. Starting at a slow pace they would continuously move up and down on him, rubbing along his stiff member.  
“If this is how you want to play, then I will make sure to participate.”, Rainbow grinned, his eyes focusing on the aroused cock of his purple alicorn friend.  
His mouth became moist and his saliva drenched tongue quickly slid over his lips in await to taste something else.
Quickly he jumped over his previous seat, turned back around and positioned himself in front of Dusk's goods.  
Dusk watched the head of his friend slowly sink, his anticipation already starting to rise until he felt the tip of Rainbow's tongue first touch the middle of his ballsack.  
In a long, drawn out lick her slowly drew his tongue up on Dusk's shaft, a shiny trail of thick saliva printed on the erect member in a straight line.  
Once he reached the tip of the black horse cock, he drew his face back a little, waited a few seconds and then pouted his plump mouth to give Dusk's tip a small smooch.  
During the following minute or two he would move around the purple stallions cock and plaster it occasionally with more kisses. Aside from the kissing he would also proceed to spread more saliva all over Dusk Shine's dick, his tongue continuously traveling over the firm outlines of Dusk's hard member.  
Once or twice he even turned his head and took a large portion of the strong horse penis between his soft lips, his tongue trying to wrap around the remaining length of the dick it wasn't long enough to do this though.
With all that moisture that had by now encapsulated his member it was fairly easy for Rainbow Blitz to swallow his friends dick, it quickly slid through his lips into his mouth were it was immediately greeted by Rainbow's tongue yet again blissfully sliding along his shaft and trying to get a good taste of him out of every direction available.  
A loud, hot moan instantly worked its way out of Dusk Shine's maw, his lips quickly bursting open and his tongue lashing out in response to the erotic feeling of having his member sucked off by his friend.  
For a while he just laid back and enjoyed the feeling of Rainbow's head moving up and down, his tongue using the meantime for licking and teasing the cock trapped inside of his mouth.
Dusk Shine's moans soon started to echo and mix with the slurping sounds that came out of his lap.  
“Hmm!”, Rainbow moaned after he raised himself up from Dusk's dick, his lips entirely drowned in saliva just like the penis of his friend.  
“I suppose now we're even in terms of licking each other.”, he smirked.
Dusk was still muffling a little so he was unable to answer Rainbow Blitz immediately, or at least not by using words.  
So instead of talking he simply launched at his buddy and quickly forced his plush lips against Rainbow's like before.  
“Mhmm! Mmm!”, the two of them returned to a conversation of hardly understandable, squishy sounding slurp and muffling noises.  
Dusk in particular seemed exceptionally eager to get things on much messier level than before now, quickly forcing his tongue into Rainbow's maw and forcing a lot of his own drool to enter his mouth and leak out between their lips.  
At least for a minute or two they were standing mostly in the same place, occasionally taking a step or two back and forth as well as sometimes breaking the kiss for a few seconds to just open their eyes and gaze deeply into each others face.
“Uhm Dusk? May we slow down a little, I'd like to take a small breather.”, Rainbow Blitz quickly told his friend during one of the few times in which they weren't face sucking on each other.
“Sure, take your time!”, Dusk grinned, a rather naughty expression growing on his face.
“What's that grin about?”, he was rightfully asked.
“I just think it's funny how you want to take a break. Also I won't stop just because you do!”, Dusk replied and Rainbow quickly followed this statement with another question.
“Wait, what?”, he tilted his head back, however immediately getting what Dusk Shine meant since he watched the stallion leaning forward and pressing a big kiss on his left cheek.  
“Hey!”, Rainbow expressed his confusion about this instantly, however unable to do anything about Dusk quickly moving around his face and continuing to force a second big smooch on Rainbows right cheek as well.  
“Stop that!”, he argued once again, but Dusk Shine simply started to giggle a little and keep on moving around him, placing a trail of kisses all over his face.
“Mwah!”, he teasingly spoke after leaning back again, his face beaming joyously as he watched a strong blush building up on his friends face.
“You're not making this any easier by acting in such a cheesy manner.”, Rainbow spoke.
“Oh come on, I was just joking obviously. Anyway, you seem to have regained enough energy again, so shall we go on?”, his purple companion was a little impatient it seemed.
“Sure, just needed to get some air anyway. Honestly if you don't have anything against it I'd like to test something out.”, the blush on Rainbows face suddenly intensified, his head tilting sideways and his left hoof rubbing his forehead.
“If you mean what I think you mean then I'd love to do it. Only question then being who goes top first.”, that same naughty grin from before returned on Dusk Shines sexy face.
Rainbow Blitz gulped, powerfully so as he took a close look at the pretty face of the sexual predator who was his often so silent friend.  
“Well... If you have nothing against it, I'd like to be on top first.”, his voice trembled a little, it generally sounded a little more shy than what he usually sounded like.
“Sure thing!”, Dusk casually responded, leaving Rainbow somewhat flabbergasted for a little bit, this was a little surprising considering just how dominant Dusk Shine acted this entire time.  
Not that he wanted to argue with this in the slightest, after all this was just what he wanted for a while now. Like before his eyes stuck glued to Dusk's butt as he walked past him and his soft tail waved from side to side, already revealing Rainbow the occasional glimpse at Dusk's soft anus.  
“What are you waiting for?”, he teasingly asked after stepping over to the table, kicking the seat aside and placing his upper body on it.  
He was looking back at Rainbow with what was most likely the sexiest expression he could portray, the eye lid of his revealed facial areas being almost completely closed and his tongue slowly sliding over his lips and wetting them.
Of course being able to notice an open invitation when he saw one Rainbow Blitz quickly hasted over to his mate and brushed his tail aside so that he could quickly bury his snout in the plump rear of Dusk. In comparison to how Dusk himself treated his booty before, Rainbow was acting far quicker, immediately sniffing his rear to his hearts content and quickly inserting his tongue into Dusk's anus to start lubing it up for his member. Dusk was already purring happily as he felt the forceful tongue of his friend spreading his thick Pegasus saliva all throughout the entrance of his insides and this wasn't even the most interesting thing about to happen obviously.  
“Prepare thyself!”, Rainbow grinned in a playfully mocking tone of the royal Canterlot voice and raised his upper body over Dusk Shine's rear, his aroused hard cock quickly being lifted up and pushed against his anal ring.  
As his tip started to poke against Dusk's anus, rubbing against the tiny folds on it both of them soon started to moan loudly.
Rainbow in particular continued to moan louder and louder the deeper he entered his friends ass, his saliva made it a little easier for him to enter Dusk Shine's tight butt.  
They both immediately felt overwhelmed from the sensation of either feeling Dusk's tight inner folds carefully rubbing against the sensitive shaft of Rainbow and his tip in particular, or from feeling the pressure and power of his throbbing dick working him from the inside out.  
“Ahh!”, their loud voices blurred into one another through the excited gasps that left each of their plush mouths.  
As soon as the entirety of his hard member vanished in Dusk's rear he started to pull it out again only so he could thrust his cock once again into his friends butthole.  
He repeated this pounding first off at a rather slow pace and then little by little got faster in his wish to fill Dusk's bum with his hot jizz.  
Their heart rates drastically increased the faster he got, particularly because each new thrust became a lot rougher than the one before, but this also meant that the pleasure Rainbow felt from having the inner folds of Dusk's bottom rub against his member.
Eventually he reached a point from which on Dusk's hindquarters were constantly pushed forward whenever Rainbow would thrust at him with his powerful hips.  
“Oh yes!”, he yawned out of pleasure as he felt his dick suddenly releasing his hot juices into Dusk Shine. A few seconds passed until he moved again, his body was caught in a state of full on relaxation for the moment.  
After said moment ended he slowly stepped backwards, pulling his released cock out of the smooth anus of his friend and trembled to a nearby wall so he could regain his balance.  
“This was great.”, Rainbow Blitz sighed in a pleased tone.
“I'm glad that you enjoyed humping me so much. Because now it's my turn.”, Dusk's magic aura suddenly wrapped around Rainbow and started to lift him over to the table all the while Dusk himself was moving a little away from it to make space.  
He then placed Rainbow with his back on the able and enfolded his wings, preparing to lift himself a little into the air.  
“Don't worry this won't take too much more time.”, he smirked just before beginning to rub the tip of already twitching cock against Rainbows soft and squishy butthole.  
At first he just brushed his tip up and down Rainbow's starfish, but soon enough he was done teasing himself and his friend and simply started to push his hips forward.  
Rainbow's ass wasn't freshly lubricated, so it took him quite some force to finally enter the tight booty of Rainbow and work his way through his stuffy insides.
Considering that he was already at the edge of cumming it was only normal for Dusk to not waste any time and immediately proceed to pound the blue Pegasus ass.  
His thrusts became just as rough as Rainbow's final ones in only a little amount of time, thus causing the two of them to simultaneously return to a quick heartbeat.  
“You sound a little unsatisfied Rainbow? Don't worry I know how to change that.”, Dusk playfully said just after Rainbow Blitz exhaled a powerful moan and his horn started to glow brightly purple again.  
Like before he engulfed the limb penis of his friend in a warming aura of magic which immediately returned to where it left off before, jerking off Rainbow's hard member.  
For another few minutes Dusk Shine kept pushing his lap forward and pulling back to continue this procedure, all the while sending shivers of arousal through his mesmerized buddy's veins.  
The final blow of Dusk came rather spontaneously, Rainbow felt his butt filling with warm cum and at the same time also felt the throbbing cock of his friend leaving his anus as he lowered himself on the ground and sat down.
Both stallions started to pant and for a long while they wouldn't stop doing so, it had been a long and exciting day after all.  
“Well...”, Rainbow muffled.
“What?”
“I think we found the perfect way to spend the afternoon.”, he laughed for a second or two and Dusk soon continued to laugh as well.
Author's Note
I hope everyone enjoyed reading this little story and to those who didn't, I'm sorry for potentially having wasted your time with this.   
I'd also like to apologize for all the stupid mistakes inside of this, English is not my native language, even though this might not be an actual excuse working for anyone out there.