Brotherly Help

by Bronycommander

First published

A filly's first heat is a powerful thing. Petunia has to learn this the hard way, with her three human uncles

It's been a while since Petunia landed on Earth, enjoying her life with her new human friends and family to the fullest.

However, one day, she feels very strange and asks her uncles, Hoang, Dung and Dang for help. A burning between her hind legs. A filly's first heat is a powerful thing. They all learn that it can be very difficult to handle.

Curing it is pretty fun though

foursome, three holes filled, swapping positions

Please don't judge me too hard, I am still learning in terms of mature and this idea popped in one day and I thought, why not? Inspired through Scout Feather's Zebra Filly Estrus

Also, special thanks to Horndog for proofreading and helping me to get the descriptions up

Brotherly Help

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Petunia loved the company of her new human friends and family, helping them to settle in, knowing that it was difficult for them at first, but they made good progress.

While the events of her on Earth had been difficult to process, her family and friends helped her as much as they could, which she appreciated and it helped very much.

After all they went through, it warmed the filly’s heart to see that Ethan, Hoang, Dung and Dang got offered to serve in the Royal Guard, having a well-paid job, where they could help and protect others.

And while having her Cutie Mark already, it was also delightful for Petunia that Liam and Lara had gotten a place in the CMC, helping other foals to find their special talent.

With her human friends, her special talent as an archaeologist was made even more fun, sharing the happiness of a discovery together. Not to mention being in school with her new friends together. They regularly visited each other to play games and do sleepovers, enjoying it every time, with their respective parents making sure they were comfortable, checking if they needed something, like a snack.

For Liam and Lara, it was not very difficult to leave their old home behind, as they had few friends in school due to the Vietnam War. Eventually, their friends distanced from the siblings due to their father’s role in the war. As such, they were happy to have Petunia and the other foals as friends.

Of course, there was also the change of food but that wasn’t a problem, as ponies also ate fish and poultry, so the humans could eat meat when desired. And yet, the little filly loved the vegetarian meals her human friends came up with from Earth.

It had only been a month since the start of their new life, and it looked like a bright future for them, much to Petunia’s happiness.

Mostly she was happy that the three brothers were finally reunited and able to live in peace as family, as they had always wanted. No longer did they have to live in fear of killing each other.

It always brought a smile to the ponies to see the brothers playing music together. Also, Petunia was sure all humans would love the holidays that would be similar to theirs, like Heartwarming Eve.

She was also sure the three Asians respectively would someday find a mare as lover.

Today was Saturday, her parents were at work early but the brothers watched over her. The filly had planned to visit the two children but little she knew, her plan was going to be fooled by an unexpected event.

In the morning, the young foal opened her eyes to cold sweat. Her body felt like she was burning up. Yet, something told her it wasn’t a fever. Plus, a strange aching feeling came from between her legs. As it became too warm, she kicked the blanket off, yet had no strength to get up and out of bed.

Her mind was snapped out by a knock on the door. “Petty, time to get up!” It was Hoang’s voice, sounding politely as always.

“Ugh, uncle Hoang…I don’t feel so well…” She called back.

Oh…” He sounded surprised. “Mind if I come in to check?” Then, the door slowly opened, revealing the man in casual clothes with a look of worry.

She couldn’t tell why, but she felt the need to cover herself, pulling the blanket over her as he walked in towards the filly and took a whiff.

In a matter of seconds, the eyes of Hoang went wide. No…this can’t be… He thought in complete surprise, his expression matching it.

“Hey, brother, what’s the problem?” Dung’s voice sounded from behind and Hoang turned around to see both brothers in the doorway.

Before the older brother could form any response, the oldest of them took notice of the whiff. “What’s that smell?”

“Dung, Dang, I think I got sick…” Petunia said to them, but the actual answer dawned on them quickly.

The brothers looked at each other in disbelief, then nodded and Hoang stepped forward.

“Petty, we think you might be experiencing your first heat.” He explained with awkwardness in his voice.

“H-heat?” She asked dumbfolded in return and he sighed.

Did you ever have ‘the talk’ with your parents?” The filly shook her head in response.

Sighing again, Hoang prepared to explain it to her, yet the scent of Petunia was affecting him, making it difficult to focus.

It can’t really…affect humans…right?

“You see, when a mare is in heat, it has the purpose to make her ready to take a stallion and become a mother, so to speak. But it happens at random, and makes one think and act differently, However, it goes away after a few days.”

B-But…I want it gone now!” Petunia exclaimed sounding desperate. “Can’t you help me?”

“What? Nonono!” Hoang exclaimed in shock, his brothers took a step back but the smell of her body grew stronger in effect and they felt their members becoming erect, creating a bulge in their pants, despite knowing it was wrong. Petunia on the other hand looked at them with a pleading look, throwing off the blanket.

It was there were the brains of the humans ceased to function at the sight. Her slit was reddened, engorged, droplets of aroused filly juices were forming on the outside.

Yet, they managed to reboot and the oldest brother spoke up. “Petty…we shouldn’t…”

“It hurts!” She whined.

Their rational judgment slowly getting overridden, the men closed in on her, starting to undress and the filly’s eyes went wide. “So that is what a human thingy looks like.”

“You…know?” Dung could not believe what he just heard.

“Well…since we ponies do not normally wear clothes, our private parts are visible at all times.” She explained in a totally logical manner.

The humans nodded in response, the intoxicating smell fully taking control over them as they climbed on the bed, yet realized they should be careful.

“You have to promise that this stays a secret. Just between us,” the youngest of the brothers said with slight unease and she gave a nod. “It will hurt at first.”

Hoang then lowered towards her and held up a finger near her clit. Petunia let out a small gasp of surprise as he slowly entered her inner walls with it, moving it in and out.

It was strange at first, tingling a bit but somehow, it felt wonderful, instinctively bucking her hips but she held firm as she also felt a strange pressure building up.

He did this for a short time before stopping. ”Why did you stop?”

“It was just to ensure it will be easier for you.”

“R-right…” She gave a weak smile. “I wish I could repay all of you. It’s the least I can do after all you did to me.”

Hoang took a deep breath. “Well, in a way…you could.” He looked at his brothers, they nodded as they understood.

His finger, wet from having prepared Petunia’s filly hood, now moved it slowly into her tail hole. Again, she let out a gasp of surprise at the strange, yet nice feeling as the second-youngest brother moved his finger in and out of her for a short time.

Upon stopping, he positioned himself on top of her, Dang under her and Dung in front of her, his cock lined up in front of her mouth. “What am I supposed to do with it?” A clueless expression was on her face.

“Lick it. You know, like you would do with a lollipop.” The oldest man explained to her and she nodded.

Yet before she did, the younger brothers slowly pressed against her filly hood and tail hole, with her watching with equal parts excitement and anxiety, biting her lip. Petunia arched her back as a sharp pang of pain ran through her.

Watching with slight worry, Hoang and Dang waited for her to recover, as blood leaked out of her vagina, receiving a weak smile after a short moment. “I think…it’s alright now.”

Nodding in understanding, they both started to slowly thrust in and out. She got painfully stretched apart, letting out a grunt. Yet, the pain began to slowly die away and was replaced with pleasure.

Of course, she didn’t forget about Dang, wrapping her lips around the tip of his cock, swirling her tongue around his member, as he slowly thrusted in and out too.

As expected, she was tight and they all were careful, yet it was very stimulating for the three brothers. None of them could believe that they had their first time with the very foal they had sworn to protect and brought them together. Yet, it made it so much more special for them.

Petunia couldn’t help but let out a muffled moan as whatever her uncles were doing. It felt nice and wonderful, she was enjoying every second of this. Also, the strange pressure was building up again.

And yet, she could feel how the aching feeling in her lower body slowly vanished, yet twitched every now and then.

Everyone started to sweat, but none of them cared, lost in this blissful world.

She could feel how the men’s thrust increased, being faster and shorter, yet stronger, the pressure becoming more and more intense as her spasms were more intense as well.

All this made it so much more enjoyable for her, loving this feeling when they all entered her.

“I’m gonna…!” Dang panted as he reached his limit, letting out a cry with his brothers. At the same time, Petunia’s body got overwhelmed by a tidal wave of pure ecstasy as thick white fluid filled all her holes. It tasted salty and she managed to swallow it, her belly bulging. She loved every second of it.

All panted, with the men pulling out, the filly’s vision was blurred as she tried to recover. “That was…amazing!” She exclaimed in glee and was quite surprised as her vision became clear again.

Hoang, Dang and Dung were still erect. “Do you…want to do it again?” Petunia asked with a slight grin, her voice innocent.

Still under the effect of her scent, the brothers nodded, switching positions. Hoang was now in front of her mouth, Dang at her butt and Dung at her vagina.

The filly let out another gasp as the three penetrated her again, yet it did not hurt as much as before.

Due to not having fully recovered yet, it felt more intense for the foal, and she spasmed more than before.

Yet it didn’t change the fact it felt just as wonderful for all three.

Waves of rich, sensual energy drove the men as they penetrated her over and over again, picking up the pace, getting faster and their moaning becoming louder and more frequent.

Petunia couldn’t describe how wonderful this felt, never having experienced anything like this, letting out a muffled moan as she used her tongue as good as she could to licked Hoang’s penis.

As such, the pressure was building up faster, with the brothers trying once again to achieve a simultaneous orgasm.

It was enough to bring the three to the brink of their climax, letting out cries and the filly felt how she was filled again, with her body seizing up.

And still, as they all slowly caught their breath, they felt they had still some energy left. “Another round?” Paleo asked and the brothers looked at each other.

Was it her scent that gave them all that stamina? Or was it just something from their family?

Nevertheless, they agree and switched again, with Hoang taking her butt, his older brother her lower hips and the youngest taking her mouth.

Once again, the waves of sensual energy fueled them all, penetrating the foal, while she tried her best to buck her hips to their thrusts and her tongue to lick the cock in her mouth.

For Petunia, whatever this new experience could be called, she understood that it was something wonderful for all of them.

The pressure in them all was building rapidly, none of them expected to last long.

At first, the brothers were scared of hurting her or getting caught but now, they knew she fully trusted them and they didn’t care about getting caught.

Hoang, Dung and Dang could feel how their cocks were begging to explode.

It was then that Petunia squeed as she seized into a fit of spasms once again, clamping down, causing the brothers to erupt. Jets of their seeds filled her up a third time, overflowing her and leaking.

This went on for a short moment before they all panted in exhaustion, yet delighted as the brothers pulled out, finally satisfied.

Looking at herself, Petunia was a mess of the white fluid leaking out, her belly bulged, she yet smiled. “That was great! Now what?”

Hoang and his brothers looked at each other. They were sure that here, ponies couldn’t get pregnant by humans, yet had the same idea for her.

“What about Ice cream, petty?”

The filly grinned widely.

“I’d love to!"