http://pastebin.com/PFtJyGUN
 
>"Anon..." Twilight groaned.
>It was that time of year.
>Estrus season had come around again.
>Twilight was very different this year.
>Last year, the alicorn had kept herself calm and collected, for the most part.
>The occasional slip maybe, as was common with most mares around this time.
>This year?
>Twilight was about to ride you raw.
>The entire library smelled like sex and sweat.
>Add to the fact that smelling you just made Twilight's need *worse*?
>Your natural scent, undetectable to your own nose, already made her horny when *not* under the effects of estrus.
>Now?
>Spike had to take cover at a room in the Canterlot palace, Twilight was getting so bad about it.
>Her nose was pressed against you at almost all times, only only stopping when she needed to sleep or eat.
>You were sure to make her drink plenty of water, even if she didn't want to.
>You may have been taking every advantage of this to be in that tight, warm tunnel of hers, but you didn't want her to *die* on you.
>In her almost delirious state, she had mentioned letting you 'plow some of her friends into the floor, seeing as you couldn't get them pregnant'.
>Her exact words.
>She then instantly flipped her statement, saying she'd leave you if you did.
>...then Twilight burst into tears for yelling at you, again offering a threesome or foursome or however-many-you-wanted...some.
>Estrus season was...strange, to put it lightly.
>She had given you a blowjob in the middle of the street just yesterday.
>Pulled you into an alleyway, pulled your pants down just enough, and took her prize.
>You were scared shitless about being thrown in a dungeon for indecent acts in public.
>As it turns out, literally none of the other estrus-sufferers cared much about it...aside from wanting to jump on your dick or in Twi's pussy.
>A few mutters of "Lucky mare" or "Lucky guy" as well.
>Twilight yelping again brought you back to the task at hand.
>You currently had a small toy buried inside Twilight, the toy itself enchanted to vibrate when it came in contact with the mare's nethers.
>Meanwhile, two of your fingers were knuckle-deep in her cunt, feeling around inside almost at random.
>They were looking for one spot in particular...
>Her insides were *hot*, much hotter than usual.
>Her mouth was open and her tongue was lolling out to the side as she lost total control.
>Her hips bucked against your fingers, her fluids splashing onto the bed.
>Twilight wailed as she came again, your roaming fingers finally finding the mare's g-spot and pressing gently on it.
>"Anon, please, put your cock in me! I want to have your foals, I need to have them~!" Twilight moaned, sounding almost crazed.
>You had never heard Twilight talk like this, your vernacular was rubbing off on her.
>...but damn if you didn't know a direct invitation when you heard it.
>Grabbing the vibrator that was now absolutely covered in Twi-juices, you grinned.
>You offered your hand to her, and she began cleaning it of her own fluids.
>You, meanwhile, went right for the source.
>Twilight shrieked and tightened her thighs as you lapped at her pussy, her back hooves around your neck.
>"N-n-no fair~!"
>You grinned as you continued lapping her blackberry-hinted juices, the horny mare squirming as you hit everywhere you could.
>She screamed, loudly, when your fingers started massaging her exposed clit as well.
>It was swollen and sensitive, the prime target for today.
>You were harder than diamonds, but weren't ready to give her the 'prize' yet.
>You chuckled.
"You haven't earned it yet, my little Twilight~!"
>"Why?!"
>You merely chuckled again.
>You watched her horn light up and a magenta ring appear over both your wrists, to no avail.
>She had just tried to pin you down and take it herself.
>Mentally thanking your magic resistance, you instead chuckled.
"Poor little Twilight..." You said, fingers teasing her slit again.
>Her tail was simply going mad, flicking back and forth as if it were possessed.
>You put the vibrator against her tail dock, and she squealed again.
>Her eyes rolled back and she fell back onto the bed in a twitching mess.
"Oh, whoops."
>Perhaps a little too far.
>She was still breathing, at least.
>You took away the vibrator and turned it off, waiting for Twilight to wake back up.
>You didn't have to wait long.
>A short break for water, and she was all over you again.
>A single playful spank to her flank was all it took to re-ignite the flame.
>"Please, please, please~!" Twilight whined, dripping already.
"Hmm..." You pretended, 'thinking' for a moment.
>Those thoughts were completely disrupted when you felt her tight cunt wrap around your cock anyway, the mare tired of your games and just taking it herself.
>You groaned as she made you hilt.
>"I neeeeeed this~!"
>She stopped and panted, looking back at you with a loving smile.
>"L-l-like ice water on a fire..." She sighed heavily, visibly relieved.
>You playfully swatted her flank, grabbing her hips and repeatedly plunging into her.
>Her moaning and gasping started anew.
>She wanted it? She was going to get it.
>You leaned over to whisper into her ear.
"You want to bear my foals..."
>Her groans grew in volume again.
>"Yes, yes, I do, I dooooo~!"
"...then you better bear me plenty of them~" You finished with a teasing growl.
>Twilight Sparkle gasped sharply at that, pussy tightening on you and milking you for every drop of your genes.
>A few more heavy thrusts, and you painted her insides white.
>Her wings flared out as she went into a silent orgasm, mouth open and horn alight.
>Eventually, she was not so silent.
>"Ah, ah, ah~! Ahnon, IloveyouIloveyouIloveyouuuuuuu~!"
>She then collapsed onto the bed, worn out for now.
>Twilight panted as she lay there, tears of happiness streaming out of her eyes.
>You laid down with her, and she latched on to you.
>You knew she'd be horny and raring to go in a few scant hours, when her body rejected your sperm as incompatible.
>It happened last time, it would happen this time.
>For now, you gave the mare a deep kiss, one she eagerly returned.
>"You...make me so happy..." Twilight murmured as she broke off.
>Her horn was lit up, and she saw your questioning gaze.
>Twilight giggled girlishly.
>"Not wasting a single. Solitary. Drop."
>She gave you another peck on the cheek.
>"After all...trying to get ME pregnant, not the bed~!"
>At that, her breathing started to get a little heavier.
>She was looking over your shoulder, grinning toothily.
>Might be time for round two already.
>"Anon...somepony's watching us..." The mare said in a husky tone, not insulted like she ordinarily would have been.
>Your eyes widened a little.
"Who?"
>"Rainbow. The little voyeur is still watching too, hiding in that cloud hanging just outside the window." Twilight said, gesturing only slightly to the cloud in question.
>Indeed, two cyan wings were sticking straight up out of a cloud, occasionally quivering.
>"I think we should give her another show~!"
>Twilight then locked her lips to yours, pulling her body closer to yours and obviously trying to get you to fuck her again.
"Later, Twi." You said with a good-natured chuckle as you broke the kiss.
>You felt the mare tense up, then sigh.
>"Alright, fine...food, some sleep...?"
"That would be great."
>After all, the two of you still had five more days of the season.
>You were both going to be so sore afterwards.
>You in particular were already starting to feel the exhaustion setting in, despite all of your precautions.
>...totally worth it.
===