At the same time as Fluttershy is running through the marketplace, Pinkie Pie happens to hop past Rarity’s boutique. She is bouncing happily, humming one of her cupcake songs as she’s on her way to Sugarcube Corner.

Suddenly she stops midair and walks in reverse to a spot she had noticed something interesting. She looks on the ground, seeing a curious object in the lying close to the edge of Rarity’s house.

”Ooh, a jawbreaker!” She says out loud, ”Someone must have dropped it!”

She looks around for a moment and shrugs.

”Oh well, finders keepers! I’m not the one to waste a treat!”

Not able to think twice before she acts , she grabs Fluttershy’s gland of clitoris from the ground, throwing it into her mouth like a piece of candy!

Fluttershy immediately stops on her tracks, feeling her clitoris falling into something wet and warm.

***

”Mmm, tastes a little funny!” Pinkie wonders as she rolls the clit all around her mouth with her tongue. Her slobbery tongue stimulates every nerve end with its movements, coating the sensitive love nub with her saliva. She pushes it between her teeth and cheek, grinding it against them as she moves it around with the tip of her tongue.

She keeps suckling her treat excitingly as she starts hopping towards her destination.

”Mmmm! Mmhaah! Aaah!” Fluttershy moans loudly, passerbys giving her a weird look as she staggers forwards. She’s feeling the most intense oral she’s ever been given, and has hard time walking straight.

”A-a-aaah! Di-Discooooord!” she pleads and pants, making Discord take action. He doesn’t want to see his special somepony like this!

”Be still, I’ll go to Rarity’s!” He tells Fluttershy and teleports away, leaving her behind.

”P-please hurry!” Fluttershy whispers worryingly, crossing her legs to prevent her marehood from leaking because of the stimulation.

***

Pinkie, on the other hoof, is getting more into her ”jawbreaker”. She tries to bite on the clit to break through its surface and get some taste out of it.

”Hmm, it’s a bit chewy… Feels like rubber or a bubblegum...” She’s not able to put her hoof on what the very thing she’s chewing on could be!

Not able to break it with her teeth, she shrugs and keeps sucking on it. She’s not far from Sugarcube Corner anyway!

***

Fluttershy is very much howling on her spots, on the verge of the most powerful orgasm she’s ever had. She drifts away and hides in the nearby alley, not able to take such teasing anymore. She NEEDS to get off!

”Nggh… Ah! N-no!” she’s almost crying, rubbing her backside vigorously with her hoof. With her teeth sinking in her clit, she feels her climax coming like an unstoppable avalanche. She grits her teeth and squints her eyes tightly to prepare herself.

She’s going to…!

”Hey, Sis! What are you doing, can I ask!”

A familiar voice makes Fluttershy jolt. She opens her eyes and, to her horror, sees her brother, Zephyr Breeze, standing in front of her smirking like an idiot!

No! Not him!

Anypony else but him!

Fluttershy feels like she’s about to cry. She tries to squint her legs tighter and wishes to sink deep in the ground, away from her good-for-nothing brother who’s witnessing her at one of her most embarrassing moments!

”What are you doing here in time like this?” Zephyr asks out of curiosity, soon noticing the smell his sister is emanating. ”Say, Sis? Are you on heat?”

His nostrils flare, and like with every time a stallion catches the smell of a mare’s arousal, his stallionhood starts to drop out of his sheath, exposing its a quite impressive size before his big sister’s eyes.

”Hnngh… I…Eep!” Fluttershy stammers. She once again feels something hard scraping against her clit, and lowers her head in desperation.

”Ffff… F-fuck me!” She blurts out, not even believing what she just said.

”What?”

”Nngh! Nngghh! P-please… Fuck me…” Fluttershy desperately shakes her head, trying to get her thoughts away from her clit, but it’s no use.

While Zephyr isn’t the brightest pony of them all, he’s not that stupid, immediately realizing what his sister’s problem is. Wanting to see if she’s honest, he decides to play along and see how far she’s willing to go.

”Oh yeah? You want this, huh?” Zephyr teases Fluttershy, straightening himself to grab onto his stallionhood to show it off. Her eyes immediately shoot open in surprise, as her brother’s most private, and most valuable, asset appears in her line of sight.

”You want my cock, Sis?” He shakes his penis in his hoof, making Fluttershy uncomfortable as her brother’s flare wobbles in front of her eyes. ”I know other mares want it... But I didn’t know YOU wanted as well!”

”Ngh… I… I…!”

Fluttershy isn’t able to help but stare at her brother’s green and pink cock. Throughout her youth and life she has only seen him urinate with it, never actually giving it much of a thought.

But now, in such terrible heat and with her loins burning, her clit mysteriously being abused by some horrible creature somewhere, she’s horny beyond believe! And right now the only thing resembling a phallus, seemingly able to satisfy her terrible heat, is her brother’s thick penis only a couple feet away from her!

His delicious cock… She wants it so bad!

Fluttershy whimpers with tears in her eyes, knowing very well she’s on the brink of doing something she would absolutely regret. She nears closer to her brother, opening her mouth to taste his meat. She just can’t stand it anymore!

”Oh no you don’t, Sis!”

Zephyr suddenly backs off, Fluttershy letting out a whimper of disappointment, her eyes watering as the mouth-watering penis is taken away from her.

”You have to beg for it first!” Zephyr smirks, ”Say, you want this cock?”

”I… I!” Fluttershy pleads, her eyes still locked on Zephyr’s throbbing meat-spear, ”I’d really love to…”

”That’s not begging, Sis!” Zephyr moves his cock closer, ”You have to say how much you want it! Tell me to give it to you!”

”I… I really…”

Fluttershy’s breathing gets heavier and she sweats more than before. This terrible edging has blurred her mind, and she’s ready to ANYTHING to get off. She takes a deep breath.

”Oh, Zephyr! Please… FUCK ME WITH THAT COCK! I WANT IT IN MY MOUTH!” She screams as hard as she possibly can, taking Zephyr by surprise.

”Oh my, Sis! I didn’t know you were THAT desperate! But, if you insist…”

He leans closer, holding his cock only a couple of inches away from his sister’s face. He feels Fluttershy’s breath against his flare as she takes whiffs of it, soon noticing her extending her tongue and moving her head closer. She looks so cute doing it, Zephyr’s penis twitches in response.

Finally, Fluttershy celebrates. Finally she’s sex with somepony! It doesn’t even matter for her that it’s her brother of all stallions! She’s do desperate to feel something inside of her, she doesn’t even think straight!

Her tongue reaches Zephyr’s flare, the tip of it touching softly on the surface of her brother’s sensitive flower. She’s going to…

Suddenly Zeohyr lets out a breathy, shaky gasp as he pulls back quickly. His cock jolts off his hoof and erupts all over, the ground, the walls, the trash bags on the alley, Fluttershy’s surprised face…

”Eep!” Fluttershy squeals frightened as Zephyr’s stallionhood bounces and sprays semen in front of her, some of it getting in her mouth. She closes her eyes in reflex just in time to cover them from a rope of cum splattering across her face. It’s so warm! She couldn’t even believe her brother was that virile!

When Fluttershy finally opens her eyes, she sees her brother staring at her in shock. His cock is leaking with the leftover cum, and he’s blushing in embarrassment over his premature ejaculation and a sudden realization of what he had just done.

He came on his sisters face! And not only that, he was willing to succumb onto his lust, wanting to have sex with a family member, take advantage of her!

”Umm… Bye, Sis!” He manages to blurt out after a brief silence.

Forgetting he’s a pegasus, he turns around and runs away, his semi-flaccid cock almost dragging along the ground as his fifth legs.

”N-no! Come back!” Fluttershy’s senses scream in desperation. She licks the cum from her hooves, immediately taken aback by it’s salty, musky smell and taste.

Noticing the pool of cum on the ground, she bents over and sticks her tongue out, starting to lick the pool as she doesn’t want any of her brother’s cum to go waste.

She doesn’t even know what she’s doing, or why. She just acts in a whim.

She doesn’t even care about the other ponies passing by and looking, not giving any attention to them or their reactions.

“Oh Fluttershy, I didn’t realize you were so kinky!” Aloe giggles as she’s crossing the alley with her sister, on their way to the spa.

”Oh, if you like cum that much I could give you some after I close up!” Donut Joe jokes as he’s taking the trash out of his store.

Fluttershy keeps licking the ground like a dog, drunken by the taste and texture of Zephyr’s cum. She’s crying on the inside for her actions.

Oh why, WHY does he have to be her brother? Why did he have to grow up so handsome and have such a massive, desirable cock and-

At this moment, Fluttershy feels passing the point of no return. She screams in ecstasy as her nectar sprays out of her gleching pussy, dropping limply on the ground. She squirms and flails herself in all directions, moaning and panting in the afterglow of one of the most intense orgasms she have ever witnessed. Soon she collapses on the ground and shakes vigorously, trying to catch her breath.

Finally!

Finally she got off!

This was the sweet relief she anticipated!

***

It is at this moment that Pinkie has arrived at Sugarcube Corner. She spits the clit out in a nearby pebble garden, being a little disappointed her treat wasn’t as tasty as she first thought.

”Now that was a weird one. It didn’t have any real flavor!” She shrugs once again and smiles, ”Oh well, at least there are a plenty of treats in the bakery! Time to get back to work!”

She goes inside the bakery, forgetting everything about the clit that lies lonely on the pebbles, waiting for its owner to find it.

The owner, who is lying on the ground about a couple of miles away, sobbing uncontrollably after such an embarrassing moment, her mind filled with so many emotions.

This has to be the worst day of Fluttershy’s entire life!

-Chapter 5 end-

Author's Note

From this chapter on the story is written by me, based on Bashi's consultation and ideas.

Could it get any worse than this?