How To Knock Down A Big Ego

by Nagiman

Rating: mature
Tags: Sex, Rumble, Anthro, Porn, My Little Pony: Friendship is Magic, Fetish, Rainbow Dash
Length: 5110

Rainbow is after Thunderlane so she doesn't lose a bet. However she wins big with his little brother.

Rainbow Dash has made a bet with Spitfire, however Thunderlane is throwing a big wrench into it by not showing up for Wonderbolts practice. Rainbow with a fury of a thousand suns goes looking all over for him. Going to his house she ends up running into his little brother Rumble, who has grown up over time. Having exhausted herself out, she takes a break and talks with him. They end up deciding that Thunderlane needs to have his ego put in check and what better way to do it then to do it together.

Kinks - SPA (Small Penis Appreciation), Anal, Oral, Cunnilingus, Analingus, Squirting, Spankings, Creampie, Tender Loving, Older Mare/ Younger Stallion (30s / 18 - 22), M/F, Small Breasts

Time has gone by and Rumble is older in this story. 18+

Coverart by Larrykitty on Derpibooru

Published 2021-10-03 09:50:00 UTC
Last updated 2021-10-03 09:50:00 UTC

Winning While Losing

The rainbow maned pegasus stomped her way up to the front door of the small grey house. Her face more red then a ripe tomato, as the stewing rage steamed out from her ears as if a pipe valve had burst. Her body was hotter than the sun as she had begun her estrus and it didn't help in her current predicament causing her anger to add to that heat that coursed through her. The summer had been filled with training with the Wonderbolts, and as one of the new recruits rising through the ranks she was put in charge of the others attendance and was losing a bet with her captain because of one lazy recruit.

Thunderlane, a lazy black pegasus, that had been recruited the same week as her. He had missed the past few days, making Rainbow's bet go south as she needed to have nearly ninty percent attendance of all cadets to win big. Today he had missed again, and Rainbow was tired of this mockery to her reputation. She rapped hard on the door, letting out a shout at it. "Thunderlane, I know you're in there! You've missed the past four days of training with no calls in, I'm here to settle this once and for all!" She slammed her fist hard one more time against the door before it slowly opened.

Behind the solid wood stood a slightly taller pegasus of grey with black slicked hair and purple eyes. Wearing a white tank top, and small blue shorts. He starred back at her for a little bit before speaking in a timid voice. "Are you done beating up our door Dash?" He gave a quizzical look to the blue mare. "Thunderlane isn't here, hasn't been for a few days. I thought he was out training with all of the wonderbolts."

Rainbow's frustration increased but she started to release her anger, as she knew Rumble didn't have any control of the situation. With a groan of defeat, Rainbow wiped her hand down her face as she shook her head. "Dammit. I don't know where he is either. He's supposed to come to training for the Summer Sun Celebration, but with him being missing for this long I was hoping he would be here." She wiped the sweat dripping from her brow, as she breathed heavily. "So you don't have any idea where he's at at all?" She leaned her face towards the younger pegasus, her eyes digging into him.

Rumble pulled back from the mare's glare into his soul. He shook his head in the negative manner. "Not a clue Dash, I swear." His heart beat began to pick up, as a bit of sweat began to roll down his own brow. "You can check his room if you want to." He stepped to the side, gesturing her welcome into the home. "It's just down the hall, second door on the left."

The mare pulled back, loosing her gaze on the stallion as she entered into the house. Slipping off her sandals at the entrance way, and making her way down the hall. Opening the door, the room was empty. Just a messy bed, with clothes and magazines over the place, and tv on the wall. She growled at the sight of the mess before her, as she turned and walked back to the living room where Rumble had remained standing, with the front door now closed. "He's a dead man Rumble. I'll ask once more, if you know where he's at, tell me now." Her frustration grew more, as her teeth clenched, showing her pearly whites in a made glare that would make a bulldog squirm away in terror.

Gulping down his fear as the mare looked ready to deck him as well, he spoke out, "I...I'm positive Dash, I don't know where he's at." He held up his hands, open palmed to the well toned mare. "You look like you've been running all over Ponyville, do you want something to cool down with at least."

Rainbow stopped in her angry tracks, the words cracking into the wall that her mind had built up focusing on one thing. Her stomach let out a growl in hunger and thirst, as she spent most of the day in the sun. She looked down at herself, temper calming at sudden quiet in the room, with just the sound of a clock ticking from the wall. "I guess I could use something to at least cool off. What you got pipsqueak?"

Rumble let out a sigh of relief as the mare went from raging bull to silent lamb. "I've got some cold ones in the fridge and was in the middle of cooking lunch. I can easily add a bit more to the dish to make it big enough for two. Just take a seat on the couch." He patted the big brown sofa with his hand, before making his way past the mare, smelling her estrus, as he slipped by.

The mare in her more pacified state watched as the stallion whisked by into the kitchen, opening the fridge. She could watch him from the open counter top that split the kitchen and living area. The smell of something cooking from the stove caught her nose. The sweet smell of sauce, with a hint of chicken tackled into her own nostrils. "Thanks, I guess." She rubbed the back of her head as she took a seat on the couch. The soft velvet fabric rubbing against her blue fur as she slipped down onto it. "I'm sorry about making a bit of a scene there Rumble. Just really annoying that your brother is causing me to lose a bet with Spitfire, not to mention it's throwing practice routines out of whack when you're down that one pony."

"I understand Dash, it's not something anyone would want to lose. Though he did act odd the first day before he took off. So that would explain it a bit. Here catch." He threw a cold can of beer from over the counter towards the mare who caught it with ease. "Hopefully something comes up about him." His eyes kept darting between the food and Rainbow.

Her slim figure, with small but perky breasts, hidden behind the black crop top she was sporting, with her tight sport shorts showing off her well toned ass and thighs. The outline of her thong showing through ever so slightly to tease anyone who focused more on her lower half. Rainbow let out a belch as she swallowed down a big swig of the beer. "Ya, hopefully something will come up. I've tried all his usual locations, but haven't touched most of Ponyville, or even Cloudsdale yet either." She sat the can down on the table, the metallic clink of tin meeting glass rumbled in the quiet home. "I know you usually are telling the truth. Seeing you grow up that way to just snitch out your brother's antics or even just letting us know when somethings going on with him. Truthfully Rumble, sometimes I wish you were the older brother of your duo. Would have been less of a hassle." Rainbow let out a chuckle at the thought.

Rumble laughed along with the mare. "Well, sadly that's not the case. At least you didn't have to endure is endless prodding and pokes as you grew up along side him." He reached up into the cupboard and pulled down a couple plates, scrapping the food from the pan on the stove onto them. He picked them up and headed to the living room, taking a spot next to Rainbow Dash on the chair nearby. He set down the plates of a pasta dish mixed with vegetables and chicken, covered in a tomato sauce. "Here you go. It's nothing as good as Thunder makes, but I'm still getting better at it at least."

Rainbow's mouth watered at the sight of the meal, as her stomach growled some more. She picked up her plate and began to dig into the meal. The sweet taste filling her mouth with the tomato sauce, and the crunch of the steamed veggies. Her mood turned further from her angry mode to more of an excited and happy one. "This is really good Rumble. I'm sure Thunder makes good food as well, but this stuff seems amazing. Are you sure you aren't really a chef in secret?"

"No, I promise I'm not. It's just an easy dish to make. Nothing really special about it." He rubbed his fork through his own plate, mixing the food together more. "Though I'm glad you like it."

"Well it's really good. I haven't had good home cooking for a bit since I've been stuck up at the academy eating the cafeteria food." She scooped the last bit of her plate into her maw quickly, having devoured the whole dish as if it was just air. She set her plate down and burped. Resting her hand on her stomach as she recovered her breath from her swallowing spree. "That was delicious. I feel a bit better now as well. Maybe some food was just what I needed to calm down." Rainbow looked over to Rumble who was staring in awe at how fast she consumed the meal, and noticed a small little lump forming in the stallion's shorts. Her body twinged at the sight and she shifted her eyes away from it as her heart skipped a beat.

Rumble looked a bit in confusion as Dash shifted her head away from him. Then he felt the tingle in his groin which warned him why she turned, as her cheeks turned slightly red. His vision however was all over the mare, taking in her form as something that always struck him as beautiful. He set his plate down, half finished of his food. "I don't have any more, but if you want to finish my plate, you're more than welcome to it."

The mare kept her vision away from the young stallion, as her mind raced hard as if she'd been thrown into the wringer again during training. Her estrus was starting to get to her, filling her mind with ideas, heart beat becoming fast and hard like a marching drum, her body warming itself up for a sexual encounter. "Don't do it Dash, don't do it. You can't do it to him, he's much younger than you." She screamed at herself internally. She went to turn again, and saw Rumble now starting to get up from the chair, his small bulge tenting the shorts he had on, even though it was minor looking. That's when she snapped, she couldn't take it much more, but she knew she had to play it safe cause no Wonderbolt would be able to do anything pregnant. "Um... Rumble, could I ask you for a small favor?" Dash's eyes looked to the floor, as her face was now burning red from sheer sexual embarrassment.

'I guess?" Rumble looked a bit confused as he had gotten to his feet. He picked up the dishes and took them to the kitchen. "What do you need Dash. If it's bits that's one thing I'm short on, but if it's more physical of a favor I could most likely provide that, or if you want help finding my brother I don't mind that either."

Dash fidgeted with her fingers, rolling them around and playing with her palms as she worked up her confidence. "Well it isn't for bits that's for sure. Just been thinking, that well... Thunderlane has been such a braggart and sleaze ball at the academy hitting on all the girls, but he's not been able to get anything from it. If he's going to cause me to lose a bet, I think I want to hit him where it hurts as well." Rainbow turned and looked to Rumble as he washed the dishes clean. "I want to hit him in the ego hard, so would you like... mind having sex with me? It can't be traditional sex since I'm in estrus, but anal is really fun as well or so I've heard." Her face was flush with red, as she put on an awkward smile. "It could be a good way for both of us to take him down a notch."

Rumble let the plate in his hand drop back into the sink with a clatter against the other one sitting in there. His face blushed deep red, his chest now on fire, with his groin starting the flow of blood en masse to prepare for the proposition as his brain flashed ideas of how Dash looked naked. He stumbled over his words trying to sputter out something that resembled a sentence until he blurted out, "I couldn't Dash, I think of you too much like a sister." His eyes clenched as he tried to still his beating heart.

The mare gasped in shock at the sudden loud burst from the stallion, her pupils going to near pin pricks. The room stood silent with the sound of water and a clock ticking in the background. After nearly a minute Dash broke out into laughter, her arms wrapping around her belly as she fell back against the couch. "That's a good one Rumble. Thinking of me as a sister." She rolled back and forth as she couldn't contain the balled up chuckles.

"I'm serious. You treat me with more respect than Thunderlane does, so I've always thought of you as my older sister because of it. Maybe I was wrong." He turned off the taps and his head starring downward as he dried off his hands with a towel. His heart now coming to a complete slow and body tuning down from sexual arousal.

Dash stopped her giggling fit and sat back up. "Hey, I'm not laughing at you. I get what you mean. Thunderlane is a bit of a dick, but I'm no big sister. I wouldn't even count myself close to that in anyone's books. I think of myself more of a coach or I dunno what the word is, but someone who can be there. I am the element of loyalty after all." She held a big smile as she walked towards Rumble. She placed her hand on his shoulder and lead him over to the couch. "Seriously though, you can still think of me as a big sister if you want to, but I want to be clear that doesn't make it a literal truth, just as figurative one. Now, how does it sound if we make a small video and tackle Thunderlane's ego, and you get to pound my fine ass. Win win win I would say, wouldn't you?"

Rumble starred into Dash's eyes, falling deeper into the magenta pools before snapping out of it all. "I... well... okay." His body nervous, but yet excited at the same time. He sat there not knowing what to do to start, so his eyes just locked on with Dash. His throat full of cats keeping his tongue from saying anything else.

The mare giggled at the awkward stallion but made the first move for him. Grabbing him by his baby faced cheeks and pulling him into a romantic kiss. Swirling their tongues in a wrestling match where Rumble didn't put up much of a fight, but Dash didn't mind. It was all to relieve her own sexual tension, and to get back at the asshat that was Thunderlane. One of her hands wandered down Rumble's chest, her fingers stroking gently at the stallions lithe form and twirling along until it reached his groin where it rubbed over his shorts, getting a feeling of a small bump.

The grey stallion did similar to Dash, but only made it as far as her chest. His fingers feeling her tiny breasts, but yet even though small they had a softness to them that kept them firm yet supple to the touch. Rumble's heart rate became erratic as his mind battled with his morale ideas, thinking of Dash as a sister made it feel weird yet still right to him. His lips pressed harder against the mare's as he pulled her head in with his other hand, embracing the full intimacy of it all.

The pair embraced their deed as they broke from their lip lock and began to explore each other's bodies with both hands and lips. Kissing necks, cheeks, chests, and rubbing thighs, arms, groins and breasts. Each one feeding off the other in their sexual exploration.

"Well now, you would think you did this before." Dash said as she got up from the couch. She put her hands under her top and pulled it up over her head, showing off her bare chest, with perky pink nipples on full display. "Though, that's only the primer. Need to have some more pre-game fun before the main event." She slipped her fingers in her shorts and wiggled them down, leaving her standing in nothing but her white and pink striped thong that was pressed tightly against her vagina, showing off a puffy cameltoe, and the rear of the fabric buried deep between her cheeks, leaving very little visible. "So let's see what's under these." She said as she got down on her knees and began to pull down Rumble's shorts.

Rumble watched as the naked Rainbow tugged away at his shorts and getting view of his black boxers underneath. His bulge still showing very little under his underwear. Dash then grabbed the edge of his boxers and repeated again, until it freed Rumble's small penis from the undies. It was no bigger than her middle finger and a bit more. Rumble's face went red as can be as the mare got a full view of his stallionhood. "I'm sorry it's not very big."

Rainbow looked in wonderment of the small dick, as her hand wrapped around the whole thing with ease, even covering the tip in her grasp. Letting it go she leaned in closer to it, and pushed it with her nose. She smiled and looked up at Rumble who was covering his face in embarrassment. "Hey, don't worry about it. It's not the size that matters, it's how you use it. I've got small boobs and most would think that's not what a good female is. Thunderlane is smaller than you though, at least from what I've seen in the showers." She gave the stallion a wink, before taking hold of the small cock between her thumb and finger and began to stroke it slowly.

"Wait, he's smaller?" Rumble said with a shocked tone. "He always made fun of me for having such a small dick, but I never seen his at any point so I thought he was huge."

"Nope, he's smaller indeed below the belt. Probably why he has such a big ego. Now, how bout we get to some real fun." Dash opened her mouth and began to lick away at Rumble's dick and balls in single strokes. Going from a nut up to the tip, flipping back and froth between the left and right as she cleaned him like a cat. Each lick getting the sweaty taste from the heat, with the sweet taste of pre-cum leaking from his tip. A good mix that made Dash shiver in anticipation of having the micro-cock in her butt. She couldn't believe she found a pony with something in her taste of small, and even better it was going to be glorious to see Thunderlane's face when he found out she fucked his brother and not him.

Rumble grabbed onto the sides of the couch as he felt the mare's wet maw making work of his dick. The coolness of her saliva mixed with the warmth of the tongue, with the slight rough texture of it as well was sending waves of pleasure through him. Feeling her lips wrap around the small mass as her tongue wrapped around the small shaft and then begin to bob was amazing. His tongue flopped out as he gave gentle moans, his eyes keeping watch of the mare now playing with his balls with one hand. "Fuck, that's amazing Dash. I didn't think it would be this good."

Dash gave a smirk as best as she could with his meat in her mouth. She could feel it give small twitches as she stroke it with her tongue. Letting go of it, she began to stroke it again with her thumb and finger, holding her mouth open wide. "Come on Rumble, give me a good sample to taste." She stroked away as she watched the stallion clench his eyes and let out a moan as a small stream of cum blew from his tip directly into her mouth. The blasts were not very big and barely filled a shot glass worth's of cum into her mouth. However she still held the pool of cum in view of the stallion as he came down from his orgasm, and let him watch her drink it down with a single gulp. Dash licked her lips and smiled at Rumble, before she spoke, "That was good Rumble, but that was only the beginning, now for the real fun." She climbed up on the couch, and stuck her big butt into the air, showing off the small piece of fabric barely hiding her ponut from him.

Rumble watched Dash slip on the couch, her face down against the side, with her ass shoved up in his face. She wiggled it back and forth in front of him, hypnotizing him with the movement. He slid himself over to the mare, and grabbed hold of her thong and slide it down to show of her juicy ponut, and dripping pussy. His body still recovering from his orgasm, he wanted to make sure she was repaid in kind. His hands took hold of her hips, stopping the swaying as his face buried itself into her cheeks and his tongue piercing into her wet folds of her pussy. Lapping away at the sweet juices it provided from her estrus, filling Rumble's nostrils with the enticing smell, and squeezing at the small intruder that poked in and out of the wet folds.

Dash gasped in pleasure, letting out a low moan as she felt the stallion penetrate into her precious flower with his tongue, and adding his finger against her winking clit. "Fuck... Rumble..." she mumbled out as her brain filled with the sweet feeling of dopamine that drove her wild. Her heart racing a marathon in only a few seconds at the pleasure, with her body dripping more and more juices down to the couch below. Her legs tensing up and relaxing repeatedly as Rumble kept switching what was licked and what was fingered. Going from her clit to her pussy with that tongue of his, and reverse with his fingers slipping in and out, taking hold of the winking nub and giving it a massage.

The stallion knew that Dash was getting close to her own orgasm, so he moved his tongue up to her ponut and began lapping away at it. The feeling of the wrinkled flesh, and thick soft warm hole brought him a new type of pleasure he would have never thought from licking a butthole. His fingers slipped into the sopping wet pussy and drilled their way in and out of it, feeling more and more of her vaginal fluids coating his hand in the process. With a few more licks of her ponut he dug his tongue right into the hole and got blasted with the warmth of the inside of the back door.

With a loud gasp, Dash began to cum. Her body tensing as she felt the tongue penetrate into her ponut, and the fingers finally hitting her g-spot, sending her over the edge into bliss. Her pussy squirted out hard all the fluids it could, coating the couch and Rumble with the sticky sweet mixture of her love tunnel. The feeling of his tongue scraping around the inside walls of her ass keeping her going, while his fingers rubbed against her now strained clit. Rainbow's eyes rolled back in her head as she began to see white and then black as she collapsed against the couch. Her legs now given out and down on her knees with her rump on display. Her tongue lolled out as she panted in post orgasm bliss.

"I think I might have over done it huh?" Rumble said as he pulled his tongue out of the mare's ponut hole. He rubbed the back of his head as he got up from behind her.

Dash let out a garbled mess of words that even a drunken man couldn't understand. Her chest was rising and sinking as she took in short shallow breathes to recover herself from such and enjoyable oral session. "So awesome." She squealed out as she lay still.

Rumble looked at the mess he had made of her, with all the dripping fluids flowing right out of her to the couch below. He held his fingers there for a few seconds before licking the mess clean from them. The taste was very sweet, just as much as sugar would be. Licking his lips clean of the residue on them he felt his vigor return, as he climbed up onto the couch and positioned himself behind the mare. His small dick erect and ready to go another round with Rainbow. He lined it up with her ponut, the small tip just as big as the entrance it would be going into. He pushed and was let in with no fight back. It only took a second to fully hilt, but the warmth hit his shaft with great force, same with the outside walls of the anus squeezing down tight on it. He pulled back an open palm and gave Dash a slap on her ass cheek, causing it to jiggle and snapping the mare out of her daze.

The mare let out a moan as she felt the hand cross her rear. The slight tingle of pain as it sent waves of pleasure up her back. She felt his hand spank her a few more times, leaving a red imprint on her ass. The feeling of his tiny pecker up her ponut was something her normal toys couldn't provide. It was hitting that itch that most would over reach, with the tip just bumping into it at the perfect angle. "That's it Rumble, fuck my ass. Your tiny cock is the best thing around." She reached down to her shorts on the floor and pulled out her phone, turning on the selfie camera and began to film the too of them on the couch. "Look at this Thunderlane, even your brother can get me into bed when you can't. He's great at pounding my ass." She watched in the phone's camera as Rumble slapped her butt a few more times, eliciting squeals of delight from the mare.

"This is great Dash. Your so tight against my dick." Rumble moaned out in joy as he grabbed the mare by the hips and re-angled himself over top of her. His thrusts becoming quick as his balls slapped against her pussy. The wet noise of them hitting it becoming louder as he moved as fast as he could. "Shit, I don't think I can last any longer Dash." He said as he gripped for his life on the mare.

"Fuck, do it Rumble, fill my ass with your jizz. Show your brother who really is the best." Dash could feel the tiny dick twitching as a bigger load than before began to fill her back door. The warm gooey cum splashing up against her tunnel walls, as it streaked in stringy shots. Each one tickling her a bit more as she felt a mini orgasm herself begin. Her clit winked as a couple squirts shot out, hitting Rumble's sack with the sticky liquid. Dash let out a moan into the couch as Rumble cried out in pleasure. Dash dropped her phone onto the ground as the pair enjoyed their final sexual moments.

With the end of his load, Rumble pulled out and fell onto his butt on the couch, with Dash still laying there. Both of them panting in orgasmic bliss. "That was great Dash. I haven't felt that good in, well forever." His chest heaved as he laid down onto his back.

Rainbow reached down and stopped the recording on her phone. She turned around and crawled between Rumble's legs, giving his cock a quick suck before letting it go. Her face wielding a big smile. "Oh that was good on my end too. I've always wanted to have sex with such a small penis on a guy. It reached just the right spots that it needed to. Plus your tongue work was great. We could probably do this again another time if you want to." She ran her hand up across his cheek as she laid down between his legs, with his now flaccid dick resting at her nose.

"Wait, what? Really again?" Rumble looked at her with a bit of confusion.

"Ya, again. Not right now mind you, but another day. Maybe when I'm on vacation and not on my estrus. Then you can give my pussy a try out with that magical little thing of yours." She tapped on his dick with her finger. She flicked at her phone a few times and sent the video off to Rumble and to Thunderlane as well with a message. "Hey Thunderlane, since you didn't want to show up to practice, your brother got it instead." She set the phone down as she relaxed with the stallion. "So now that's over with, I don't mind losing a bet with such a good reward for it either way."

Rumble laid with his back against the couch and the mare using his thigh as a pillow. "Ya, I think I enjoy this knocking of Thunderlane's ego. Though I do still feel a bit weird doing this, it's not as bad now. Can't believe you have a fetish for small dicks."

Rainbow kissed his cock and looked up to him. "As I said, size doesn't matter, it's how you use it. In this case however, it's the best size to me. Now, how bout we have another beer and maybe I'll suck it again."

The stallion let out a laugh as he moved her off him. "Sounds like a plan to me."