Just a Taste (of Something Sweet)

by NightCoreMoon

Rating: mature
Tags: Spike, Rainbow Dash, Cutie Mark Crusaders, Equestria Girls, Sex, Main 6, Main 7 (EqG), Profanity, My Little Pony: Friendship is Magic, Alternate Universe, Human, Romance, Porn
Length: 4448

Spike has a problem. A big problem. A thunderous raging pounding HARD problem. Rainbow Dash helps him out because she’s such a good friend. But she has a problem of her own: all he sees her as is “just” a friend. Sometimes “benefits” isn’t enough.

Spike is in love with Rarity. Rarity just showed up to the pool party in the tiniest bikini he had ever seen. Spike got a massive erection and then felt incredibly guilty about it so hid in the bathroom. Rainbow Dash needed to pee, and saw that her friend needed some ‘help’. So she ‘helped’ him. Good news, Spike is grateful to his Strictly Platonic Friend (but with Benefits now) and feels better about the situation. Bad news, Rainbow secretly has a big fat crush on him. Unrequited Love and Sex are a good mix, right?

/x/x/x/

Rainbow X Spike vs Spike X Rarity

AU: all sapient characters are humans in the human world, sunset is from the horse dimension, otherwise the worldbuilding doesn’t really matter

Published 2022-12-03 08:10:01 UTC
Last updated 2022-12-03 08:10:01 UTC

1- I’m In So Deep

/x/x/x/

Spike stared into the mirror, gripping the sink hard enough to turn his knuckles white, and whispered to himself.

“I. Am NOT. Horny.”

He then looked down at the huge solid bulge in his swimming trunks that proved him a liar.

“Damn it…” He pressed his hands to his face and groaned. “I can’t go out there like this!”

Outside the door were a dozen hot girls in revealing swimsuits, any boy’s dream really, Spike wished that he was in any other circumstance and with any other group of people. Applejack. Fluttershy. Pinkie Pie. Rainbow Dash. Spitfire. Trixie Lulamoon. Sunset Shimmer. Starlight Glimmer. Apple Bloom. Scootaloo. Sweetie Belle. And… Rarity. Oh yeah and his sister Twilight was also there but he didn’t find her sexually attractive because ew. But as for the rest of them?

Spike opened his fingers to peek down. Yup. He still had a blatantly obvious thundering erection going on. He covered his eyes again and moaned low.

A knock at the door jumped him out of his reverie.

“Hurry up in there!” Rainbow cried, voice dripping with urgency. “I gotta pee and they won’t let me go in the pool.”

Spike tried to discreetly cover his Problem as he opened the door.

“I’m sorry, I-“

“Oh!” Rainbow’s eyes locked directly onto his dick. “I see.”

“I’ll get out-“

Rainbow shoved past him, shut and locked the door, then rushed to the toilet before shucking off her bottoms.

“Rainbow!?” Spike asked, covering his eyes. “What are you-“

“Aaahhh…” she sighed as her bladder released. “One… one second,” she leaned back against the seat until the stream slowed to a stop. “Alright. Okay. Spike?” She returned her focus to him and reached a hand out. “Spike? Bro? Look at me.”

He reluctantly did so, gluing his eyes to hers through the veil of his fingers.

“No one is gonna be mad at you, or judge you, or whatever, okay?”

“But-“

“Dude. I’m okay with pissing in front of you. Most of the girls here would be too. Except maybe Fluttershy. But she won’t even pee in front of me either. And a boner is the most normal thing in the world for a dude to get when he’s surrounded by hot chicks in bikinis.”

Spike groaned again. “But I don’t want any of you to think I’m a perv or anything.”

“Being a perv would be skeezing on us. Being a perv would be staring at my crotch and not my eyes. Being a perv is the stuff that you do, not the stuff your body does, capisce?”

“It’s still embarrassing.”

“It’s only embarrassing if you let it be.” Rainbow stands, sending Spike to turn completely around as she wipes. “Like that.”

“Rainbow, I…” Spike thunks his head against the wall. “I just wanna go to my room.”

“And crank one out?” She jokes as she pulls her bottoms back on.

“I’m not joking,” he spits. “I feel like shit enough even just thinking about you girls like this, it would be worse to actually do anything about it.”

“Hey,” Rainbow whispers in a gentler voice as she washes her hands. “It’s all right. It’s normal. You know how many times I’ve done it myself?”

“What, fantasized about your sister’s best friends like some kind of… of sick degenerate?”

Rainbow sets her hands on Spike’s shoulders and turns him to face her. “What’s degen about having a normal sex drive? If anything, you not getting horny by us in bikinis would either mean you’re gay-“

“I’m not gay.”

“Or it means that we’re all uggos. If anything, your boner is a compliment.”

“Yeah, but-“

“Spike. Look at me.” She waited until he begrudgingly did so. “We all knew that something like this was gonna happen. We all know you’ve been in love with Rarity for like nine years.”

“I didn’t wanna fuck her when I was ten!”

“How old were you when you first did wanna fuck her then?”

Spike grumbled. “Thirteen.”

“Okay so that’s six years you’ve been horny for her, and have you ever done or said anything she said made her uncomfy?”

“…no.”

“And what’s the least amount of clothes you’ve ever seen her in?”

He sighed before answering. “A skirt and a tank top.”

“Well no wonder you’re getting all fired up, she’s got the tiniest suit out of all of us. Like her tits are just about to burst out.”

Spike couldn’t help but feel his dick twitch.

“I don’t wanna talk about this,” he whispered, his eyes welling up. “It makes me feel dirty.”

“Dude are you… crying?”

He tore away from her grip. “Just let me go to my room, okay?”

Rainbow put her hand on his as he reached for the door knob.

“Have you ever had sex with anyone?” She asked.

“No, I… haven’t found the right person yet.”

“What’s that supposed to mean? Isn’t Rarity the right person since you love her n’ shit?”

“Yeah but she’s too old for me.”

“Too old? She’s not even four years older than you.”

“She would never go for me.”

Rainbow snorted. “Yeah, okay.”

Spike slowly turned his head to her. “What do you mean?”

“Dude, have you even asked her?”

“Well… no.”

“Okay?”

“I know she’d say no. I know she’d just be like, darling I’m flattered but I don’t feel the same way. And then things would be awkward between us for the rest of our lives and then our friendship would be ruined. And that’ll happen if I go out there with an erection, but it’ll be weird for everyone.”

“You really are Twilight’s brother… well, it’s not awkward for me.”

“Well you’re a… well, you know.”

Rainbow cocks an eyebrow. “I’m a what?”

Spike purses his lips. “Aren’t you… a lesbian?”

“No. I’m not a les- okay yeah my hair is rainbow but Twilight is the only lesbian in our whole friend group. I think. Sunset might be but I dunno, I think it’s less a gender thing and more a horse thing. But I like dudes.”

“Oh.” Spike begins to blush furiously. “I…” his eyes wander southwards as his subconscious mind just now began to consider her as something other than a strictly platonic friend, much to his brain’s chagrin but to his penis’s intrigue. His gaze traced the gentle curve of her small but no less enticing breasts, the smooth lines of her toned belly, the few wisps of hair sticking up out of her suit, and the thick muscular thighs built up over a decade and a half of various sports involving running. Spike struggled to swallow.

“Like what you see?” Rainbow gently teased.

“I… uh… I… um… uh…?”

She leaned her head in close. “Hey. I understand that you’re feeling not great about this situation. I know you probably don’t feel good about being hard around us, especially since you’ve known us for a long time. Almost half your life. But… I promise you that we don’t mind. Or at least, I don’t. And, uh. If there’s anything I can do to help you out…” she slowly gets on her knees.

“R… Rain?”

“I know enough about dudes that when you nut, you’ll be good for an hour or so before getting really horny again. So I’m gonna help you to nut. That okay with you?”

Spike struggled to get his breathing under control as he began to see what was about to happen. “But…”

“No buts, man,” she said, reaching over to lock the bathroom door. “We all like spending time with you. We don’t want you to feel like you have to lock yourself in the bathroom when we come over. So if sucking your dick means everyone else gets to enjoy your company more, I really don’t mind taking one for the team. Let’s just call this me proving to you that I’m straight. Is that okay with you?”

Spike braced himself into the corner and tried to keep his breathing and his pulse down enough to respond, but he merely nodded his head.

“Okay…”

Rainbow pulled the shorts down, slowly, licking her lips in anticipation. First the coarse curled hairs showed themselves, then the base of his shaft. Rainbow kept pulling, showing more and more. And more. Her eyes widened as she pulled them down further, past his balls until finally the head showed, and popped out of the waistband, wobbling up and down as Rainbow stared, mesmerized.

“Sorry,” he choked out, covering his eyes with his inner elbow.

“No apology necessary, holy SHIT you’ve been holding out on me- on us.” She adopts a more comfortable position before placing one hand around the shaft and the other on his hip. “Here goes.”

She begins by gently kissing the head. Spike lets out a low, nearly inaudible whine as he leans back. He presses his hands into the wall and the door, and involuntarily shifts his hips forward. He closes his eyes and bites his lip as Rainbow gives a long slow lick to the underside.

Rainbow just smiles as he moans, and she slides her lips over the throbbing pink member. She gently strokes the sides of his testicles with one hand while holding him in place with the other. She starts to pull him into her mouth fully when all of a sudden she stops as she feels something hit the back of her throat.

Spike gasps, then screws his eyes shut.

“I’m sorry…” he groaned. “I didn’t mean to do that…”

Rainbow pulls her mouth off, and struggled to swallow a few times, the hot salty sludge getting stuck on the way down. Eventually, however, she flashes him another smile. This one was less teasing than gentle.

“Hey, it’s okay buddy,” she said, giving an affectionate tap to his stomach. “Sometimes you’ll just get off a little too early.”

“No, that’s not what I…” Spike pulled back and covered his dick with his hands. “I’m sorry I did it in your mouth.”

“Oh.” Rainbow chuckled to herself as she stood up. “Hey, don’t worry about it. I don’t mind swallowing. I’ll just drink another vodka cranberry, no biggie. Do you at least feel a little better?”

Spike opened his eyes and saw a friend who seemed to really genuinely care about his emotional state. He relaxed his shoulders and shoved his softening member back into the trunks, and thought about the question. Honestly speaking, he did. He told her as much.

“It’s that post nut clarity,” she joked, putting one hand on her hip and the other behind her head, rubbing it gently. “We all get it. Guys a bit more, so I’ve heard. So, uh. You ready to get out there and have some fun again?”

Spike awkwardly rubbed his hands on his arms. “Yeah, I…” he glanced down at her body again. “I think I’ll be fine. But…”

Rainbow planted her hands on either side of his head. “But?”

“Uh…” Spike tried to look into her eyes but couldn’t. “I just have a question or two.”

“Shoot.”

“Why me?”

“Why you?”

“I mean, you’re…” he motioned to her body. “You’re really hot. And I’m…” he then motioned to his own. “I’m not.”

“Dude, you look fine. You look like a regular young dude. I mean you’re not super buff or anything, but you’re not super skinny either. You’re a very normal looking guy. Hotter than most dudes I’ve fucked, actually. And your dick is huge. Well, it’s not like. Enormous. But it’s pretty big. And girthy.”

Spike blushed. “You think so?”

“You’d have made my jaw ache if you didn’t cum so early. So, what’s the ‘or two’?”

Spike’s blush deepened. “Well, I…”

Rainbow gripped the bottoms of the triangles separating Spike’s vision from her tits, and pulled up over them. “You wanna touch ‘em?”

Spike’s hands moved before his mouth did. By the time he was fully conscious of the fact that he’d just said ‘hell yeah I do’, he also noticed that he was already squeezing them. He darted his gaze up and saw that she was giving him the most smug grin he’d ever seen. He then returned his attention to the fact that he was touching a girl’s chest for the first time in his life. And slowly a huge grin started to creep across his face.

“So this is what boobs feel like…” he murmured to himself.

Rainbow’s smile quickly faded. “I’m your first?” She asked.

“Uh…” Spike could barely tell what she’d said, and focused instead on her nipples against the palms of his hands. They were small, and perky. The soft supple flesh pressed between his fingers, and he lost himself in playing with her breasts for a while. Eventually, he shook his head and mentally slapped himself when he realized she had asked him a question. “Yeah, I…” he made small circles with his hands. “These feel so nice.”

Rainbow slid her hands onto his own. “Have you ever had any experience with a girl before me?”

He shrugged. “Not really… do you want me to stop now? I can stop if you want me to stop.”

“You’re fine, man,” she said, flashing him a reassurance. “I just didn’t know you were a total virgin before this. We still cool?”

“Of course! I want us to be still cool! I didn’t do anything you didn’t like, did I?”

“Hey. Spike. If I didn’t like it I’d tell you. Okay?”

He nodded. “Okay.”

“So you’ve never felt a girl’s tits before. Have you seen them?”

“I mean, I’ve seen both mom’s and Twilight’s before, but that doesn't really count. I almost saw Cadance’s once, but I shut my eyes before I did.”

“Have you… kissed a girl?”

He sighed and looked away. “No… I was hoping it would be Rarity. But I also don’t wanna mess up my first kiss with her. But I don’t wanna get practice with someone unless I know that they’re not gonna make fun of me for not knowing what I’m doing.”

Rainbow sets her fingers on his chin and turns his face towards her. “Wanna practice on me?”

Spike gapes. “Really?” He asked. “You’d do that for me?”

“Dude, your dick was just in my mouth.”

“Right…” he chuckles, his earlier nervousness gone. “I mean if you’re okay with that then I’d appreciate it. Just, uh. No tongue or anything. Just a standard, regular, normal… kiss.”

“Don’t wanna taste your own jizz?”

“I’ve tasted it before, I just don’t wanna make out. I’d rather learn how to kiss first, then worry about making out after that.”

“You… tasted it?”

“I was curious, okay?”

“Didja like it?”

“No, I gagged for like an hour. I think that was my body telling me I don’t wanna suck dick.”

“Heh,” Rainbow tilted her head to the side as she stared him down. “I’m gonna take the lead, okay?”

Spike just nodded as Rainbow leaned closer, his pulse jumping up faster and faster as the distance between them was bridged. Closer and closer until Spike could taste her breath- mostly cranberry and vodka- and then her lips were upon his own. They lingered for several long slow moments, while Rainbow slowly stroked his hair with her fingers. An eternity passed in a few seconds, and just like that, it was gone as she slowly pulled away.

“How’s that?” She asked.

“That…” he heaved out an exhale. “That’s a kiss, huh?”

She ruffled his scalp a bit. “There, now you’re officially one of the grown-ups. Got your dick wet, palmed my titties, and even got a kiss out of it. You feelin’ okay enough to get out there and hang out with the rest of us?”

“Yeah…” he couldn’t help but smile as he wrapped his arms around her for a hug. “Thanks Rainbow. You’re a great friend.”

She returned the gesture in kind. “Yeah, no problem kid.”

They stood together for a short while, quietly breathing in each other’s scents beneath the chlorine of the pool and the patchouli lemongrass air freshener in the corner. However like all good things, their peaceful moment came to an end.

“Rainbow,” Twilight disinterestedly grumbled. “You gonna be in there all day?”

“Ah shit,” she murmured, pulling away. She reached for the knob, unlocked it, and pulled it open. “My bad.”

Twilight merely blinked as she looked down at Rainbow’s chest, then over to Spike’s hands covering his face.

“Oh my god,” she sighed, pulling her glasses off and screwing her eyes shut in disappointed frustration. “Tell me you didn’t just fuck my brother in my bathroom.”

Rainbow glanced down to see that she was topless, before giving a sheepish grin and snatching her bikini off of the ground.

“Uh… there is a perfectly reasonable explanation for this?”

Twilight put her glasses back on and glared daggers at Spike as Rainbow hastily tied her suit back on. “You’re grounded.”

“But-“

“A week.”

“BUT-“

Rainbow stepped between the siblings. “Whoa, hey, hold on a second,” she said, putting her hands out. “I just asked him to slap some more sunscreen on my back, nothing weird or bad or anything like that happened.”

“One second you say you have to pee and a few minutes later I find you half naked in the bathroom with Spike. And I smell no sunscreen. And he’s blushing like a tomato.”

“Well no shit, he’s embarrassed that you think he’s being sexual with me when Rarity’s the one he wants to fuck!”

“Buh!?” Spike spit, taking a step back.

“Nothing happened,” Rainbow lied. “Honest! Don’t get him in trouble over nothing!”

Twilight sighed. “Spike. Is she telling the truth?”

Spike slowly nodded. “Y…yeah.”

“Then how the hell did you both end up in here?”

“He was already in here having a nervous breakdown over seeing Rarity’s suit.” Rainbow glanced back at him and winked before turning back to Twilight. “So I was just telling him that he doesn’t have to be all weird about it since we’ve all known each other for so long that we’re all like family. And to prove it, I took my top off and asked him to put the sunscreen on. We just haven’t gotten it out yet because it literally just happened. On Faust, we did not fuck!”

Twilight took a few deep breaths before she responded.

“Rarity’s suit is a bit… revealing.” She looked back to Spike, whose expression seemed as shameful as it was mortified. “Are you really that worried about it?”

“I’m…” he stared at the floor as he spoke. “I’m scared that I’ll stare at her or something and make her feel uncomfortable and make everyone think I’m some kind of pervert. So I was hiding in here. I…” he turned his gaze up to her, his eyes shining. “Rainbow just helped me out. Set my head straight. That’s all. We didn’t have sex.”

Twilight nodded before stepping forward and pulling him into her arms. “Alright. I believe you. I’m sorry I assumed the worst. I really wasn’t thinking about how seeing her would make you feel. You’re not grounded.”

Spike hugged her back, ignoring Rainbow’s subtle thumbs up.. “Thanks,” he said, to both women.

“I’m gonna head back out,” Rainbow said, stepping her way past the siblings. “Get another drink. Get back in the water.”

“Sunscreen,” Spike reminded her.

She snapped her fingers. “Right! Almost forgot that part.”

Twilight turned around to face her friend. “And I’m sorry for assuming the worst from you. I guess I thought about your reputation before I thought about your friendship. And that was wrong of me. I hope you can forgive me.”

Rainbow had frozen when Twilight said ‘reputation’, but otherwise showed no ill will. “Yeah, sure, we’re cool. So uh. You wanna get my back, or is it cool if Spike does it?”

“Oh, it’s fine,” she said, bending down to open the sink cupboard and pull out the bottle. “Here,” she said, handing it to Spike before shooting him out the door. “I really have to go. Go on, have fun, and you are perfectly fine. Rarity probably wore that suit to get your attention anyway. But I really do have to go. So uh…” she made one last shooing motion.

“Alright,” he said, stepping out the door. “Have fun pouring lemonade.”

“I will have so much fun,” Twilight deadpanned before shutting the door.

Rainbow and Spike stood in silence for a minute before they both let out deep breaths of relief and headed back through the house.

“That was a close one,” Rainbow said, untying her suit and pulling the threads to either side. “I wasn’t lying about needing more screen. Slap it on, will ya?”

Spike did as he was asked, and as he was rubbing the paste into her skin, he let out a nervous chuckle. “You’re a really good liar under pressure. I owe you big time.”

“Oh, I didn’t lie. We didn’t fuck. Well,” she turned to wink. “Not yet.”

Spike nodded. “Right. Not yet. Good one.” He nodded at his handiwork. “You should be covered. You got the knot?”

She hesitated before answering. “Yeah. Go on ahead of me and get in the pool, I’m gonna get another drink. The water should be cold enough that it shrinks your balls and keeps you from getting horny again. Should be there for a while. And, uh, if you ever do have a problem like that again, just let me know, okay? It’ll be our little secret.”

Spike nodded. “Yeah, sure. I appreciate that. I’ll let you know. Thanks again!” And with that he continued on his way, merrily bumping along as he strode through the living room and the kitchen and through the door outside.

Slowly Rainbow’s own disguise faltered, and she sat down on a nearby chair, putting her head in her hands.

“What the fuck is wrong with you,” she muttered to herself, shaking her head back and forth. “Why did you do that? Why did you do that?”

She tore herself away from the chair and all but stormed toward the minibar. She splashed a little bit of cranberry juice into one of the red plastic cups, then filed it nearly to the brim with the vodka. She chugged the whole thing in a matter of seconds before shaking her head wildly to either side, and poured another one. However, the second drink had a lot higher cranberry ratio, namely because there wasn’t that much vodka left to pour anyway.

She gave a sad look to the crimson reflection in the cup. After a few moments, a drop disturbed the surface, distorting what she saw. Then another one joined it. She wiped at her eyes as she took a sip. She stared into the ceiling.

“He’s never gonna love me like he loves her…” she whispered. She took another sip before walking to the screen door leading outside. Some of the girls were playing chicken, as the rest cheered them on. Spike took a seat next to Rarity, who pinched his cheek. The smile that developed on his face split Rainbow’s heart in two, as she took a swig.

“I just wanted a taste,” she murmured. “But now I want more.”

/x/x/x/

Author's Note

Sometimes I need to write random crap so I can write my main focused project. Which is still Cold. Which is still coming along. But sometimes brain doesn’t want to write what it wants to write, and instead writes something else. Sometimes brain wants to write about me sexually dominating a boy with a huge cock and an even bigger heart because I had a really good time with my boyfriend recently. Sometimes that’s all it was supposed to be. Sometimes brain comes up with a plot twist on the fly that completely changes the narrative into something super intriguing. Sometimes brain just needs to get that out so it can focus on the grunt work of following an outline instead of spontaneously wondering where the fuck the story is gonna take itself. Sometimes brain writes enough about lesbians that it wants to give some love to girls who like boys. Sometimes I just wanna write some smut and dialogue and practice sentence structure and purple prose and editing and writing in different tenses and all that jazz. Sometimes I get stoned as fuck and drink too much caffeine and snap back to reality a few hours later and wonder where the hell did this come from. Sometimes I want to write a character I kin as being daring and forward and brash and initiating smexytiemz. Sometimes I just wanna write some horny smutty garbage with a dash of heart every once in a while. Here’s hoping someone else likes horny smutty garbage with a dash of heart.

Pun intended.

Part of me did want to kind of defy the standard tropes in smutfics that even I myself propagate sometimes. The blowjob scene was purposefully short, as well as twisting the conventional order of kiss > tit play > blowjob on its head. I also wanted to move the focus from the sexy stuff to the aftermath of the sexy stuff once it was over. Too many smutfics just abruptly end right when the plot is getting juicy. That’s why I don’t read too many of them. When I read smut I get invested in the plot and then my eyes kinda glaze over the sex because let’s be honest most porn on this website is bad and cringe, and there’s only so many different ways you can write the word penis or vagina before it starts to get absolutely thesaurus reachingly ridiculous. But don’t worry, if I do ever continue this I would certainly love to have more sexual encounters.

I realize this plot is very reminiscent of Spike’s Cumming Of Age but that’s scaley smut and this is just humans. There was also that big huge ordeal of crybaby idiots whining because I said the word cis (which is the word for being Not Trans/Futa, and Futa has a massive stranglehold on this website but WHATEVER I’m not dredging up bad memories). Here’s hoping nobody gets offended by anything this time around.

As I wrote I decided to implement themes, lines, and chapter titles from Linger by The Cranberries (rip) and Just A Taste from Firebringer by Team StarKid.

I gotta sleep before going to work and then going to my grandparents for my birthday stuff. Whether this gets any heat or none I don’t care either way, I just hope people aren’t jerks in the comments if this sucks.