Big Brother, Can I Suck Your Teats?

by LilSlipsy

Rating: mature
Tags: Sex, Twilight Sparkle, Slice of Life, My Little Pony: Friendship is Magic, Porn, Shining Armor
Length: 4349

Young Twilight asks Shining if she can suck on his teats. Problem is that he’s a colt. Experimenting ensues.

When young Twilight Sparkle reads part of a medical pamphlet, an idea popped in her head that she just couldn’t shake: suckling on teats. She couldn’t reach her own, but maybe Shining Armor would be able to assist her with this experiment. It wasn’t like there was a family dinner party that was going on.

Written for Shakespearicles’ Found Out February contest

Tags: Foalcon, Incest, Younger, Filly, Colt, F/M, Blowjob Focused, Caught, Bad Anatomical Knowledge

Published 2021-02-14 06:20:01 UTC
Last updated 2021-02-14 06:20:01 UTC

Nom Nom

I wonder if he’d say yes.

A simple question that played in my mind, as Shining Armor and I were in the living room, waiting for tonight’s family dinner to be ready. The TV let out pew-pews as he played along on his alien style video game, shooting at all the baddies with his laser gun. His controller clacked, and I tried doing the same with the second controller at my hooves.

It was fun hearing the sounds the controller made as I wobbled each of the nubs back and forth. However, my mind wasn’t really on the game at all; it was still focused on a small pamphlet that I had seen earlier in the day. The doctor’s office had a few of them right by the chair I was sitting in, and I grabbed it for something to read for only a few moments before Mom snatched it away. It had to do with something about baby ponies. There were a lot more words on the page but all I really caught was the word teats on the paper, specifically pointing to the two nubs between a pony’s legs, and a baby pony suckling on them.

It was hard to not glance between the controller and my own belly, looking at those small protrusions between my own legs. They tickled a little when I touched them once I got home and was alone for a few minutes, but one of the sentences that I barely glanced over mentioned how baby ponies nursed on them. That idea stayed with me all the way through the doctor’s appointment, all the way home, and all the way until now.

In my room I tried, but couldn’t quite lean forward enough to grab onto them and instead only got a mouth full of purple chest floof as I stuck my tongue out at them. But I didn’t have long until dinner guests were arriving and I was called downstairs. Luckily, after the cheek pinching and ‘oh-look-how-big-you-are’s were done, I was able to sneak away to the living room with Shining.

Instead of grabbing a book from the shelf to read, my mind still played with that idea more and more as I watched him. He looked surprised when I sat down beside him and asked him if I could play. He didn’t seem to mind as he grabbed an old controller for me, still wrapped in its cord; I could still make the nubs clack even if it was tied up like that.

But even if my belly was keeping me occupied, I couldn’t help but look over at Shining’s belly… or, well, at least try to if his hooves weren’t all in the way. I bit my lip a little as I watched, trying to see something else besides white fur. It was as simple as asking, but the words got caught in my throat as soon as I tried.

Would it be weird if I asked him? It might have been easier if there was a book in the house on this kind of stuff – then I’d know everything about it – but for some reason Mom specifically never got me any of the biology books. They always looked so big and exciting! Maybe it had too much knowledge in it and that’s why Mom didn’t want me reading it; just like what happened when I started to get to the really good parts of the dictionary.

I scooched over a little more, close enough that I could feel his fur tickling against mine. He didn’t say anything, only leaned away a little as I plopped my head onto his shoulder. I looked down, but I could only see white fur and shadows… maybe if I moved his hoof over a little bit. I stuck my hoof between his limbs and belly, and started to pry them open.

He leaned away, still trying to clack away on the controller. “Twi… what are you doing?”

I pulled my hoof away and almost jumped. He must have noticed. “N-nothing!”

Shining paused the game and turned to look at me. “Are you ok? You’re acting strange… well, stranger than normal.”

“Y-yea! Everything is fine! And I am one hundred and fifteen point two percent normal!” I said trying to smile as best as I could to not give my smooth deception away, even as he stared. My head moved to the side to try to get a better angle. I could see a little more but no nubs. I let out a small chuckle as I glanced back up, but he didn’t say anything, he only kept staring at me, arching his eyebrows as he looked into the depth of my very soul. Oh no, he knows! He always knows!

“W-well there is one other thing that I kind of wanted to see-do-try,” I blurted out, but couldn’t add any more. I wanted to ask, but felt awkward for some reason to even get my lips to start the question; kind of like when him and Dad were playing catch, and I kind of wanted to play too… but it was easier to sit on the side and read about sports instead.

I glanced at one of the bookshelves and sighed. There weren’t any books here that I needed. “I uh… well I kind of wanted to see your, uh… teats… and uh… suckle them.”

“My teats? What are those?”

My face flushed hot. It was almost like those nightmares where I had forgotten to study for an exam, except I knew I hadn’t studied this time! Was I even using the word right? “U-uh… you know… those two things between your legs?”

He looked over my face and his eyebrows arched a few times as he thought, before glancing down between his own legs. I angled my head to see as he moved his hoof away and revealed his belly underneath. But there still weren't any nubs, yet there was something else entirely. It looked like a small coin purse was attached to him and was the same pure white as the rest of his fur but with a much darker, black skin underneath. They certainly didn’t look the same as mine at all; his were much bigger.

“Uh… are these them?”

“Dunno, Dad just calls them balls.”

“Balls,” I said, trying the word out like I was just using it for the first time. Well it was a new definition to the word at least, since the other was a spherical or egg shaped object that is most commonly found in sports. My chin pressed against the floor as I slid closer. Upon closer inspection, it kind of looked like two round objects were stuffed inside.

My muzzle booped against his hoof and he pulled it away. “U-uh Twi?” he asked from above.

I stared up at him before suddenly blushing after getting caught up in my visual examination. “C-can I… suckle them?”

His face was starting to turn red too, but he nodded. “Y-yea… go ahead.”

I looked ahead and slid forward, reaching out with my lips until the thin hairs around his pouch were tickling against my mouth. “A-ahh~” I heard from above but didn’t move to check. It didn’t feel like a nub, but there most certainly was something inside that was much firmer.

I sucked at it until it was partially in my mouth and felt Shining’s hoof pressing on the back of my head, gripping my mane for balance; he seemed to wobble and shake the more I did this. There wasn’t much to the taste, kind of like I was just nomming anywhere else on his body, or behind his ear when he wasn’t looking. There was a very slight musky tinge down here, but it didn’t really smell any different than, well, Shining. I moved over to the second one to see if there was a difference, but it felt similar, if not just slightly smaller than the first.

These didn’t seem to be like mine at all. On myself, I could only feel the two nubs down below, and they weren’t anything like these. Maybe mine hadn’t grown like my brother’s had? Maybe Mom’s were even bigger since she was even older. I tried to think back as far as I could from when I was a baby pony, but nothing came up besides eating cake at a birthday party several years ago. Unfortunately, that far back seemed lost, so I’d have to hypothesise and experiment today instead.

I gently squeezed my lips when it was almost all the way in, while I quickly stroked with the tip of my tongue along his taut skin.

“Ahhh~!” Shining let out in a huff, grabbing at my mane even harder as his core trembled.

Wincing a little, I pulled away for a moment. “Are you ok?”

Shining nodded but looked like he was breathing harder. “I’m fine… it just tickles a lot.”

“Oh, I’m sorry. I can stop,” I said automatically, even if I really didn’t want to.

“No,” he said with a quick shake of his head. “You can keep going.” His face kept that red hue to it, even as he looked to the side and mumbled, “It… it also feels kind of nice.”

My heart fluttered in my chest hearing that, but another feeling lingered with it: one in my own belly. Another question played in my mind as I looked up at him and at his lips. His face drooped a little as I sat up, but a sparkle seemed to shine in his eye as he glanced at my belly after moving my hooves to let him see.

“You can… suck on my balls too, if you want,” I said as I closed my eyes and pointed down at the general direction of my teats, or whatever they were called. A few moments passed, and even as I opened my eyes a few times to check, Shining was still there, frozen like a statue as he looked down. His face was starting to look like a tomato at this point.

I was about to say something, but he gulped and leaned forward a little. My heart beat harder in my chest as he moved closer. It felt exciting, yet nerve wracking at the same time, and his breath blowing against my belly didn’t help at all. I put my hoof on his head as I felt him reaching, until his lips pressed right onto one of my nubs. I tried to hold back a gasp, but with the twitch of his ears, he certainly heard me.

It tickled a little as his tongue poked and lips sucked, getting my belly wet as he moved back and forth a few times. But there was one thing that I was still missing. I flopped to my side onto the floor, making sure to keep my legs open for Shining.

He rolled over a little as well and lifted his hindlegs for me as I shuffled closer, but I cocked my head curiously at the sight. Everything practically looked the same, yet there was an entirely new addition. Right from the top of his pouch, something was growing out, almost looking like a thick snake with a flat mushroom top. I moved back in and gripped onto one of his balls with my lips, but making sure to keep an eye on the newcomer.

He did feel different down here though, it was much warmer than it had been before, and now was pulsing in a way that seemed to match the growth of his snake. What that thing was, only Celestia herself probably knew. Maybe it was another bigger ball?

My curiosity got the best of me as I started to move my lips up its length. This thing was practically on fire compared to the rest of his body, and each time I moved further I could feel his sucking get harder and his body shiver. As soon as my lips got to the tip, his muzzle moved off from me as he let out a noticeable moan.

His hips shifted suddenly, poking the tip of it right into my cheek. A small spot of wetness came from it, connecting my cheek to it with a small liquid strand. I almost thought it was my own drool, but as I licked it up, it certainly didn’t taste like it. This was a bit thicker than water, with a strange taste to it that made me think of arctic ice for some reason, yet there was a slight hint of saltiness too. It made me almost want to get some parchment over here to take notes, but we both stayed with the original plan.

I put my lips around his tip and let it go inside as his hips moved. I suckled around it and poked at that gooey spot with my tongue, getting even more of it to come out every so often. This was nice, and him around my teats felt good too, ticklish, but not enough to have my hips moving like he was doing right now. Maybe this was one of his weak spots, a sensitive tickle-place to know for later if we had a tickle fight.

However, I didn’t think about it for too long as I felt his lips going someplace else: even further down my belly. My eyes widened as I felt a small kiss between my legs and a few strange tingles come along with it. He sucked at that spot and my hips couldn’t help buck into him. Was that a new even more sensitive teat that he found? Whatever it was, he needed to suckle on it more.

“Mmm… Mmm~!” we both let out every so often as we kept going. I had so many questions, but yet didn’t want either of us to move. Shining’s controller was pressing into my back, and yet neither of us worried about that, even as the sounds of aliens shooting started playing through the TV.

“Shining. Twilight,” Mom said and I could feel Shining’s head lift up. “Dinner’s ready, so let’s go and meet fam-“

“Shining! What are you doing?!”

I popped my head up to see Mom glancing back and forth between the doorway and us. “He’s just sucking on my balls,” I answered back. Her face looked like she ate a sour candy, and her eyes did that twitching thing it usually did whenever I asked her a really challenging question.

Shining turned into a statue again, but Mom let out a deep sigh and pointed to the dining room. “Dinner is ready,” she said again in a much leveller tone. “And family is here, so please make yourself presentable and come join all of us. And please don’t mention any of this to them.”

We both got to our hooves, wiping off our lips as Mom left, and somewhat straightening our manes with a few hoof strokes. We looked at each other for some reassurance, it almost sounded like we were in trouble, but oddly not at the same time; Mom usually said a lot more, even when I got in trouble for staying up and reading past my bedtime.

Either way, the family dinner was ready.

The room had a nice aroma to it of roasted squash, as well as all the other side dishes that lined the table. I munched on a buttered bun as Mom filled my plate with a little bit of everything: from cauliflower, potatoes, and carrots, to some of the green beans that one of my grandparents brought, and a big slice of squash.

All four of my grandparents were here I think, and even a few aunts, uncles, and cousins from what I caught in the conversation. One of them even brought a cake for later; I’m pretty sure Mom put in the fridge for later.

My plate floated down, now filled with food. I didn’t realize how hungry had been until now, but it didn’t take long before I was filling myself with the feast in front of me.

“It’s a shame Night Light couldn’t make it as well.”

“Oh, he’s just running late, he’ll probably be back by the time we have dessert,” Mom said as she took a long sip of water.

I focused on my food. All of it was great, but the buttery carrots were hard to stab with the fork; they kept flopping around from side to side every time. I furrowed my brows, aiming the utensil with my magic and stabbing down. The fork glanced off the side of the vegetable, sending it slipping off the plate and onto the floor below.

“Oops!” I squeaked as I chased after it, diving down under the table cloth and onto the floor. I looked around for a few moments until I spotted it on the other side of the table, right by Shining’s hooves. But my eyes weren’t on the carrot anymore, they rose up and stared at the bits between his legs; even his snake was still peeking out half way and flopped over to the one side.

I looked around at all the other ponies, but it looked like no one even knew I was here, and they were still droning on in their conversations. Looking back between his legs I licked my lips and started to sneak closer. I could feel his legs twitch as soon as I touched them, and saw the little snake bob back up into the air when my breath flowed over it.

There was even a thick bead of liquid that had grown on the tip, and a small trail going off the side, threatening to drip down onto his fur. But it wasn’t going to get the chance to fall as I put my lips around his tip and suckled on it. There was a quick bang of a hoof on the table above. Somepony must have dropped something.

The hot length was starting to grow again, throbbing in my mouth as it grew, until it was as large again as it was when we were next to the TV. It was like an entire black carrot had grown out from between his legs. He seemed to like it then, and if it was anything like when his mouth was down on me, I knew that he’d like it now.

Plus, I wasn’t done experimenting with it just yet.

My hoof rose up to touch his balls, feeling the round things inside his pouch. It seemed to make his snake part stand up even straighter.

I chuckled a little to myself as I suckled on his tip, getting it to twitch even more and his hips move ever so slightly. I did try to see what made him move the most and tried to repeat that since it seemed to feel the best from what I could tell.

However, it was strange to have this thing growing out from him like this. I only wondered when my balls would grow in and my own floppy snake would peek out. Maybe in a few years when I was his age? It would be great to have a book to read about this.

My eyes widened. What if books didn’t even have this kind of stuff yet?! Could I be the one who writes a book on this stuff? I really wanted to grab my quill and parchment to take notes, but that would have to wait for later.

I tried lowering myself on him a little more, suckling on it with the back of my tongue and feeling the tips starting to pulse harder and slowly get bigger. He grunted out from above and the conversation seemed to have quieted. I pulled back up a bit then went back down, sliding my lips along it like a popsicle.

I mentally smiled for a few moments before I felt his legs tense up and his hoof started to frantically tap on my head. I could feel the tip grow even more all of a sudden as his hips jerked it into the back of my throat. The gooeyness that sometimes came out from the middle abruptly increased and shot out, filling my throat with hotness. I pulled off, struggling to hold in a cough and swallowing down whatever it was.

More of that stuff came shooting out from his tip and I closed my eyes to try and dodge. I could feel warmth hit my mane and I jumped. “Ouch!” I squeaked as I smack the back of my head against the table and winced.

I peeked my eyes open, and saw his sturdy length was starting to droop again; a thick line of white rolled down the side and dripped onto his leg. He looked as stiff as a statue right now though, and everyone above seemed quiet except for Shining’s subtle huffing.

I reached for the carrot on the floor that had almost been forgotten about, grabbing it with my mouth before I snuck back up onto my chair. I munched the rest of the carrot, only stopping to pull out a hair and wiping it off on the plate.

“So where did you say you were going to school, Tw-“ one of my uncles said as he glanced over but then stopped with a cough as he glanced at my head, just when I felt something wet slip from my mane and heard it plop on the side of my plate.

“Oh, something with the Princess I think,” I said as I twirled around some of the green beans.

“That’s nice,” one of my aunts said simply.

I continued eating my plate of food and could still taste my brother in the back of my throat every so often. It was a nice flavour but was fading fast; his milk stuff came out so quickly and then most of it was gone in one surprised gulp. But I could still catch some remnants of its juxtaposing feel and taste of warmth and arctic ice. Interesting enough to focus on and make mental notes while the conversations around the table seemed to have died down entirely, save for a cough or the subtle clinking of a fork on a plate.

“Yes, well,” the same aunt started. “It’s getting late and I think we should go.”

“That’s a good idea,” Mom said as she took another sip of a glass that was now held, and was almost empty of wine.

Everyone started to get up and say quick goodbyes as they all quickly shuffled to the door and headed out. Mom stayed in her seat, as she finished off the rest of the wine.

“Twilight,” Mom said as soon as the outside door closed. “You need to go take a bath right now.”

“But I’m not finished yet,” I said as I looked at my plate in confusion. We hadn’t even had cake either.

“Twilight, go. Your brother and I need to have a talk.”

I shrugged and slid out from my chair, before bounding up the stairs to go wash up. It didn’t take long before the water was running and I was sitting in the warm embrace of the tub, scrubbing out my mane with shampoo to get that goop out from it. Everything seemed to be fine; the white stuff kind of looked like milk in a way, so that counted as a successful nursing attempt in my book.

Though, the more that I thought back, the more that it sounded like Shining might have been in trouble. I gulped a little bit and roughly stroked my mane, wondering just what kind of talk he was getting right now. It weighed on my mind as I finished up and dried off before heading back to my room to read. But as I looked at the page, I couldn’t actually read the words; my mind was focused on something else for once.

My ears flicked up as I heard Mom’s hoofsteps going down the stairs. I went over to peer out from the door, checking to see if the coast was clear and sneaking over to Shining’s room. He was sitting on the side of the bed, but looked up as soon as I entered.

“Hey… BBBFF....” I said softly as I carefully walked in the room. “Are you doing all right?”

“I’m fine, Twi. I just got grounded for a bit, and uh… Mom wants us to never do that again.”

“Oh no! I’m sorry! I didn’t mean to do it BBBFF.” I bit my lip, knowing what I had to do. “I’ll never do it again!”

My heart sank as he nodded. “That would be for the best.”

“You’re right…” I said with a sign, walking over to the side of the bed and slumping into it. “Even though it was kind of fun… I guess we should.”

Shining bit his lip, and looked at the door before he leaned in a little closer and whispered, “Maybe we could do it again.”

“But Mom said not to!”

He shrugged. “She did… but we can still do it… just not get caught this time.”

“Ohhhh… ok!” I said with a small giggle as my eyes lit up. “But do you want to suck my balls next time? I want to squirt milk too!”

Shining just leaned in more, wrapping his hooves around me for a hug. I pressed in, snuggling into his fur for a long as I dared, but we both knew Mom would be back soon. My heart felt a little better for the future, but eventually I hurried back off to my room before Mom saw.

Author's Note

A silly little idea that I had for this contest about curiosity and an innocent mix up in knowledge leading to this kind of situation. Hope you all liked it and if you did, please comment to let me know!