She opened her eyes and leapt onto the table, chair and sopping towel flying backwards. With a perfect four point landing, she hit the center of the table, and then pronked off the table, tackling him. He landed flat on his back and all his wind huffffed out of his lungs under her weight. The catalog card flew away.

She slammed her soaking wet hips onto the middle of his belly, just below the ribs, leaned over, and gripped his left ear in her teeth and gave a pull.

The ear-bite-and-pull was something Twilight had seen Shining Armor do to Cadance, and Cadance always howled in delight. Oh, how mad those two would be if they knew Twilight had scryed on them.......

She tasted the fur of his ear, and adjusted her bite ever so slightly. Azure's mane tickled her nose and he smelled like a book oh Celestia he smelled like a wonderful, old, musty book. The tip of his penis was pushing against her spine, right above the tail. A spasm ripped across her bottom and her loins and she ground her sopping wet marehood across his barrel and bit down harder on his ear. He yelped, and she tasted his blood as her teeth broke his skin.

"Remember first-day orientation this year?" Twilight asked, releasing his ear, which was actually bleeding pretty well, now. Oh. Oh! Oh goodness. He was going to need stitches.

"No!" he said.

"I consent. Do you consent? Celestia was really, really insistent on consent."

"Yes yes yes! I consent! Is my ear bleeding? That hurt, Twilight."

"Don't ruin this. We'll get you stitches later."

"I need stitches?"

"Don't ruin my first time!"

She spit out some of his blood, and wiped her face with her left hoof. On her hoof, she tasted... herself. With a quick lick, she sampled her own juices on her forehoof again, and an idea formed. "If you ejaculate before I break my heat, I'll buck you in the testicles and teleport you to the moon! Perform cunnilingus!"

"What? Twilight, you use crazy-big words."

"Eat my fillybits!"

"Oh! Oh! Heck, yes!"

She rolled off him--oh Celestia there was a bloodstain spreading on the carpet from his ear--shifted herself around a half-turn, planted her rear legs on either side of his head, and plopped her nethers right down onto his face.

"Mmmmrrrrrrrpppphhhhhhh!!!!!"

His levitation lifted her bottom up and he gasped. "Leave some weight on the floor, Twilight, or you'll smother me!"

She flexed her legs and lowered herself to his face, more carefully.

His tongue traced between her lips, and Twilight's entire world changed forever.

A lightning bolt shot cross her hips, down her legs to the floor, and made her tail flag straight up, exposing her anus to the world as it clenched tight. Branches of lightning circled around her ribs and settled into her belly and the muscles around her uterus spasmed in surprise. The wonderful sensation ran up her spine, into her head, and her other lips quivered and she drooled, dripping saliva onto the puddle of her own fluids on his belly.

And then he did it again!

Planting her forehooves on the carpet, on either side of his hips, she took ragged gasps in time with his licks. Her clit winked, protruding out, as if it was chasing his tongue, but he wasn't licking it, he wasn't licking it, he was teasing her, her butt muscles clenched with every contraction of her pussylips, and her vision grayed as blood rushed away from her head.

"Oh sweet Celestia for the love of the moon and the stars lick my clit!"

Upon hearing her name wafting across the stacks, Celestia slipped off her formal metal shoes and began sneaking across the carpeted floor of the library. She let her sensitive alicorn nose guide her.

Somepony was really deep into estrus.

Egads, she got tired of dealing with this every spring for the last eight centuries.

Staring, Twilight realized Azure's throbbing privates were only a few inches from her own nose. She leaned down and sniffed.

His privates smelled like books, too! Her horn tingled with a building magical discharge, and she clenched down on it, squelching the spell, and the magic rebounded down her spine and out her vagina.

"Gaaack!" he gasped, spluttering, coughing, as the huge squirt shot from her nethers and splashed his face, going up his nose. "Twilight! Did you just pee on me?"

"No! That was just a really gushy orgasm."

"That was, like, a pint."

"Don't stop licking! Gushy orgasms are what happens."

Azure licked her pussy lips, up-and-down, and said, "Are you sure?"

"We're unicorns, unicorn mares and fillies gush. It's the magic. It's gush or blow holes in the wall with our horns. I choose gush."

"What?"

"Didn't your parents teach you anything before they sent you off to boarding school?"

"No!"

"What are they, earth ponies?!?"

"Yes! And stop talking about my parents during sex." He licked her, slow and deep again.

Twilight intercepted another spell just before it could manifest and scorch the ceiling, but she sprayed another gush of hot fluids across his face.

"You're absolutely sure?"

"If you don't like it, go back to your dorm and clop."

He licked down her lips, toward the back of her slit, and her butthole clenched at his proximity.

"Don't stop, Almonds!" Twilight lowered her weight just... a... little... more... and his tongue began to explore up into her vagina, parting her lips, and the lighting bolts up her spine, encircling her hips and belly, and hitting her head, intensified.

She leaned down and touched the tip of her tongue to the tip of his penis.

He tasted like old books. She spurted onto his face again, and he dug in even deeper with his tongue.

(She was getting dehydrated. She needed to drink a lot of water once they were done. Post-sex checklist, item one: drink.)

Twilight's tongue licked up the right side of his cock, from the base to the tip, over the top, and then back down to the base on the other side. She closed her eyes and rode his tongue-fucking for a few seconds, and then made an O with her lips and gently pulled the first half-inch or so of his tip into her mouth.

He moaned into her snatch, and the vibrations changed the rhythm of the lightning bolts running from her asshole up to the tip of her horn. She licked her tongue across the slit at the tip of his cock.

For a split second, her brain rebelled: That's where pee comes out!

The clenching in her ass and abdomen replied, He's half-drowned on our squirts! Let's be a team player! She started flicking her tongue around his tip, while massaging with her lips.

"Hey, Twilight?" he gasped.

"Don't stop to talk!"

"Don't play with my tip, if you want me to last."

She sat up, and looked over her withers at his horn and the top of his head, which were mostly covered by her tail. Her tail was stingy and soaking wet. "But... what do I do?"

"Suck my balls?"

She leaned down.

Celestia grinned and shook her head at the noises coming from somewhere ahead of her. Students. Students never changed. In the centuries she had run this school, every spring played out the same way.

Celestia recalled the desperately rushed research to invent birth control spells, the first year she ran the school.

Walking more slowly and quietly, ears rotating to fix the squelchy noises, Celestia continued sneaking toward the students, preparing a lesson in discretion and in what should be done behind closed doors.

A small sleet storm--good, old-fashioned, freezing-cold pegasus magic--usually ended a session of public lovemaking most effectively.

Twilight nosed his erect cock to the side, and found her nose touching his ballsack.

He clenched when the velvety softness of her nose touched him, and his tail slapped against the floor.

Yes, his scrotum was blue.

And throbbing.

And swollen.

She rubbed her snout against it and his entire body spasmed beneath her.

The scientific part of her brain--the little bit that wasn't fogged under a haze of hormones and the clenching in her vagina and asshole--said, His ejaculation is going to be extremely large, and you don't have a dry towel.

Good, she told herself. A lot of drippy spunk might cool off my heat.

Her tongue reached out, and caressed his left testicle. There was a bit of a sweaty taste, but not too bad. He moaned into her pussy again, and she shifted her head an inch, and began to lick up and down between his balls. His cock started throbbing against her cheek even harder, and his tail smacked the floor in time with her licks.

With a smile, Twilight realized, He's enjoying this!

She pulled his right ball entirely into her mouth.

"Ohhhh.... wow, Twilight, that feels great!"

And then he shifted his head, and he tongued her clit for the first time right at the... exact... moment... it winked out at him.

Celestia peeked over the bookshelf and recognized Twilight Sparkle instantly. It also impressed her that Azure Almonds, of all ponies, was the one whose face Twilight was sitting on. Azure wasn't as asocial as Twilight, but he wasn't a Cassanova, either.

As much as she wanted to ice them, levitate them both up, and give them a stern lecture and several days' detention...

...Twilight needed a good rutting more than she needed a lesson in discretion.

Celestia frowned. Azure's ear was bleeding freely, and a good-sized puddle of blood spread underneath the two lovers.

The princess hunkered down and looked through the books, ready to intervene if Twilight hurt him worse, or in case her orgasms started manifesting through her horn. Celestia prepared a shield spell, just in case. Twilight was fully capable of blowing a hole in the ceiling and injuring somepony on the second, or even third and fourth, floors.

Given that Azure's face was soaked like somepony just out of a swimming pool, it seemed likely that Twilight had already taught herself to be a pussy-squirter, not a spell-spurter.

Thank goodness for small favors, hmmm? Twilight truly was an excellent student.

Azure's lips clamped around Twilight's clit, and his tongue began to massage it.

Her entire body lit up, from tail to horn. Her ass clenched, her pussy squelched more fluids onto his face, her ears went totally erect, and her spine straightened.

That straightening led to her lurching upwards, his right ball rebounding out of her mouth with a loud pop!

His body jerked and he yelled, releasing the pressure on her clit. "Ow! Twilight, that hurt! Be careful down there!"

She rolled off him and turned herself around again, head-to-head and tail-to-tail with him. "Intercourse."

"My ball really hurts, Twilight."

"Do you want your penis in my vagina?"

"Yes! Shouldn't you get down on all fours and present? Isn't that how this works? That was in health class."

"No," Twilight said, crawling onto him to straddle across his hips, facing toward him. She grabbed his shaft in her levitation and brought his tip just to her pussylips. As it touched her for the first time, she spurted again, and sprayed pussyjuice all over him, soaking his cock. He moaned happily.

"This is my first time," Twilight explained. "I want to control the speed and depth. Let me take lead, and be as gentle and as slow as I need."

"Oh. Okay."

She slammed her hips down with all her strength.

Celestia's eyes widened and Twilight brutally impaled herself on him. His scrotum was swelling and blackening, but the young idiot was too enraptured by the estrus hormones coating his muzzle and nasal passages to realize he needed a trip to the nurse.

Well, Celestia decided, letting those two finish and release their mutual hormonal pressure cookers could only make the nurse's job easier. No need to try to ice fully-charged testicles, hmmm?

Celestia frowned, feeling a wet sensation under her own tail, and decided she would need to call Fleur-de-Lis to an "appointment" in her Royal Chambers tonight, herself...

Twilight hilted him, dropping her entire weight across his hips.

"Yeeep!" he said. "Wait, didn't that hurt?"

Sweat broke out across Twilight as he filled her up. "Nope! Felt.... oh, good..."

"Wait--you're sure this is your first? That's fine, I don't care, but you just hilted me."

"First... uh, penis in me, yes." She squirmed, trying to get another fraction of an inch insertion, and his tip hit her cervix. "Oh! That's.... unpleasant..."

"What?" Azure frowned.

"I went too deep," she said, and lifted herself up, until her lips barely held him aligned, and then lowered herself gently.

His back arched, and he sucked in a deep breath. "Oh.... Celestia, you're so warm... and wet..."

She placed her forehooves on his chest and closed her eyes, as shivvers shook her entire body. So long as she didn't go too deep and bonk her cervix, this was wonderful.

Vagina to brain! This is what we needed!

Anus to brain! We're starting to have second thoughts here!

Vagina here! Today is my day, get to the back of the line!

Back of--! Was that a joke?

Twilight opened her eyes, and clenched her vaginal muscles. He throbbed in return and another orgasm--a different one, compared to when he had used his mouth--built.

She lifted herself again, quickly this time, and dropped her hips hard.

He gasped, and smiled up at her. "That's nice."

His face dripped with her juices, the coat matted on his muzzle, his eyes blinking her juices out, mane disheveled. He looked like he had just emerged from a shower.

She leaned down and licked his chin, around his jaw, and then planted a deep kiss.

Her hips kept working up and down as she sucked her own juices off his face, savoring her own taste and the sweaty-musky-library-y taste of her first lover.

First lover, she thought. I'm going to do this again. Yay estrus!

The fire that had built over the last week in her lower abdomen, deep under the muscles, around her uterus and ovaries, now was spreading across her lower body, a different sort of fire engulfing her canal and making her clit and lips and asshole and tail all spasm in time. Her thrusting turned rhythmic, regular, and he added tiny little shifts upward of his hips in time, which gave her that tiny extra fraction of an inch that seemed to make all the difference. Now that she was in the zone, the tiny little nudges against her cervix were... nice... "oh Celesssstia...."

She sucked her own pheromones and pussy sploosh off his cheeks and her biggest, wettest, most brain-bending orgasm of all hit, her vision graying out and swirling with stars, a splash! sound echoing across the library as she soaked both their hips and tails and the floor below them, her channel tightening around him so hard that he gasped and shuddered and his eyes rolled up and he made a "sssssrrrnnnkkk" noise and then--oh! Oh!--magma, his massive wet magmatic fire suddenly inside her and squelching out of her as she kept pounding her hips up and down and up and down and their mixed juices making splort splort splort noises as she pistoned and she looked over her withers again at her own bottom and tail, and his thick white spew was going everywhere, good gracious that was a huge tremendous ejaculation, getting white spunk across her bottom and his balls and into both their tails and slicking her butthole and that actually felt kinda good, in a naughty way, getting her butthole coated with juicy spunk and generally making a wet sticky mess and "Oh sweet Celestia here I go again!" her entire body clenched as one last massive wave rushed across her, and this time a few sparks shot from her horn and it wasn't as gushy down below but it felt so good!

She lowered herself one final time, and sat straddled across his hips, forehooves on his chest, panting.

They looked into each others' eyes.

Her entire bottom and environs throbbed, their mixed wetnesses cooling in the library's air.

"That was just what I needed," Twilight said.

"Wow. Yeah. Me too!"

She leaned forward, lying down on him, and nestled her head against his right shoulder, chest-to-chest, belly-to-belly, his penis still deep inside her, but softening with each heartbeat.

"Now this is nice," Azure said, wrapping his forelegs around Twilight's withers.

"Mmmm-hmmm," she murmured into his neck. "Remember health class?"

"Oh... oh, gracious..." he gasped, and his entire body--well, less one part--stiffened. "Are you--"

She chuckled, and nipped his right ear, careful not to draw blood, this time. "You ask that now? While I feel that enormous load dripping out of me?"

"Well?!?" he choked out.

"I've got an implant. We're safe."

His body relaxed underneath her. "Wow. Lucky."

"Shhhhh," she said. "In health class, they said this part here, the cuddle, is what actually breaks your estrus. Just hold me for a few minutes, okay?"

"Really?"

"Well, yeah. How else could fillyfoolers break their heats?"

"...huh."

He hugged her, and she nuzzled deeper into his shoulder. He lost his erection and slipped out of her, with a wet slurp sound. A large wad of his seed dripped out of her, soaking her clit and his balls.

"Almonds?"

"Hmmm?"

"Could you please... rub my withers?"

"Of course."

She drowsed against him, enjoying the warmth of his body, the chill of their mixed drying fluids, and his hooves rubbing the now-sore muscles of her withers, and she fell not quite asleep, but not fully awake, either, as the sickening throb of estrus hormones finally quieted across her body.

"Twilight?"

"Hmmmm?"

"Feel like your heat is broken, yet?"

She sat up, and squirmed her hips against his abdomen. "Yeah. I think so! I'm not waiting a whole week next time. I'm grabbing the first one of you I see, the minute it hits. I'll get so much more studying done this way, if I just rut my heat away instead of having my brain buzz with hormones for a week."

Twilight giggled. "Why didn't anypony tell us how easy this was to fix?"

She climbed off him, and stood, shakily, on all fours, looking down at him. "Moon Dancer still needs her heat broken, she's complaining about not being able to study, either. Want me to recommend you to her?"

He hoofed at his bleeding ear, and then at his swelling testicle. "Yes! But first, can you help me limp to the nurse's office?"

Twilight paled, and gulped.

Celestia snuck away, quietly, and made her way to the infirmary, beating the two lovers there by about five minutes, and spent the wait chatting with Nurse Sternheart, an older unicorn mare.

Twilight barged through the infirmary's swinging door backwards, pushing it open with her bottom, and leaving a smear of vaginal fluids and semen on the varnished wood. She levitated Azure Almonds in and gently placed him on the nurse's triage table.

"Well, my most faithful student," Celestia said, "I see your levitation has improved markedly. Mr. Almonds weighs twice what you do, yet you handled him easily."

Twilight and Azure looked at the goddess-ruler of Equestria--even worse, headmare of their tremendously selective and prestigious school--and gasped.

A wad of semen fell from Twilight's vagina and landed on the tile floor with a loud splat.

The entire left side of Azure's face was bloody from his torn ear, and as the adrenaline of the sex wore off, he breathed through gritted teeth at the pain in his swelling testicle.

Nurse Sternheat looked at Twilight and asked, "Back so soon, Ms. Sparkle?"

Celestia cocked her head. "Back?"

Twilight blushed and flicked her tail. More semen landed on the tile floor.

Celestia walked to Twilight and laid a wing over her withers (which were about the only dry, non-sticky part of the student's body). She said, "Anything I learn in this room, Twilight, I will treat with medical confidentiality."

Looking at the floor, Twilight mumbled, "Nurse Sternheart had to remove a glass soda pop bottle from my... nethers... yesterday."

Author's Note

Comments welcome!