Pants

"Yes, mis-TRESS!" Rainbow grunted, feeling Rarity's mouth upon her genitals once again...

Oh, wow... I've never seen this side of Rarity before... it's so... HOT! I wonder if—

Rarity stopped her work and slapped Rainbow on the flank.

"Ow, what was that for?!"

"You were thinking about me. I said to think about Twilight."

"But—"

"How you feel about me right now is lust. It'll be gone in an hour. Think. About. Twilight."

Rainbow dropped her head back as Rarity kept working, seconds turning into minutes as her body was thrown into convulsions. Why Twilight? What is Rarity's deal? I mean, sure, I really like her, and she's just about the best friend I've ever had... Next to Fluttershy I guess. And she has a really cute flank... and— Oh my gosh, Rarity is so good at this! No... Wait... Twilight... I always get butterfiles in my stomach when she's around... and... Wait... Butterflies? No... No way! How could I not have realized this?!

Rainbow orgasmed again, unable to carry on her thoughts normally for a few moments. Rarity pulled away slowly, lapping at the ejaculate on her face and hooves, secretly enjoying it while Rainbow was still too dazed to look.

"Who else?" Rainbow asked, staring at the ceiling, as the haze finally cleared.

"Hmm?"

"Who else knew?"

"Almost everyone, dear. Except for Pinkie Pie..." Rarity smiled, recalling that Pinkie now owed her fifty bits as a result of Dash's admission.

"So that's... at least four other ponies who knew what I didn't. Something that was so obvious!" She clutched the sides of her head in frustration.

"Oh, Twilight doesn't know, she's almost as clueless as you!"

That line didn't sit well with Rainbow. She retreated, both physically and emotionally.

"I didn't mean—" Rarity began, "Well, 'Clueless' isn't really the word I was looking for. Maybe, 'naive' would be more appropriate?"

"No... It's not that... It's just... How could you force me to realize how I feel about Twilight, when you know she doesn't even feel the same way about me! I would've been happier not knowing!"

Rarity burst out laughing. "Oh, dear, dear, that's not what I meant!" She pulled herself up to be directly to the side of Dashie. "I meant that she had no idea about your feelings for her. Why, that mare is putty in your hooves, Rainbow!"

"She is?"

"Oh, you should hear how she talks about you when you're not around. And she checks you out when you're not looking all the time!"

"She does?!"

"Mmmhmm! Oh, and you should see the photos of you she keeps in the locked drawer next to her bed! The same drawer in which she stores her... ahem... Well, I'm sure she'll show you eventually if you ask her out."

"Are you saying she— When she..." Rainbow blushed once again.

Rarity nodded, smiling.

"Heh... Oh my gosh... That's crazy!"

"But don't you just hate performing without getting a chance to practice first?"

"Yeah... I..."

"Well," Rarity added, gently stroking her hoof downward along Dash's midriff, "good thing you've got an awesome friend around to coach you."

"Oh— Yeah, yeah, totally awesome!"

Rainbow sat upright, and took a nervous glance at Rarity's delicate nether lips. The fur around them was already sopping wet, though not quite as much as her hooves and muzzle, which were matted with Dash's ejaculate.

"A bit apprehensive, are we? Don't worry, it's almost as easy as I make it look."

"Buh- What does it taste like?"

"Every mare and stallion tastes a little different, Rainbow, you'll have to find out for yourself."

The pegasus swallowed hard, her heart beating in her chest, as she slowly bent down over Rarity's crotch. This is so, TOTALLY, gay... And I like it.

Her tongue reached out and gently, ever-so-very-gently, touched at the moistened slit between Rarity's thighs. That taste... I already know that taste. It's the same as the smell... That great smell from before! She dove her tongue in between Rarity's lips, trying to claim a little more of the delectable fluids.

"Not bad, Rainbow... Are you sure you've never done this before?"

Hmm... That was easy. Okay... The clitoris now... where is that thing? She thrust her tongue in at the anterior end of Rarity's pussy, fishing around for the tiny little shaft of flesh inside it.

"R-r-r-r-rainbow! Stop!"

"Huh?" She asked, retracting her head and glancing quizzically at the unicorn, "I thought that was what I was supposed to do! Just like you did for me."

"You can't just jump straight to the clitoris, darling, you've got to tease a mare, move up to it slowly. If you try to get me all the way there using the clitoris alone, you'll rub it raw!"

"Oh..."

"That's alright, darling, just remember, mares are a little different from stallions. Now, try penetrating me with your tongue a little."

"I already did..."

"No, Dash, into my vagina."

"I thought I was!"

"No, Dash..." Rarity let forth a heaving sigh, "put your tongue into the hole that leads up to my cervix."

"...Your what?" Rainbow asked, staring at Rarity's genitals questioningly. "Do you mean your butt? I don't think I want to do that, Rare."

"Do they not teach sex-ed in Cloudsdale?"

"Sex-ed?"

"Never mind, I'll leave it to Twilight to teach you this stuff. Put your tongue where a stallion would put his dick to rut me."

"Oh... OHHHH!" She brought her face back down again to give it another shot.

"Yes... Mmmmmhh... That's it, darling. In and out, in and out... Oh, yes, and use that muzzle too. Just— Oooh! You've got it! Yes, yes, faster! Faster! ... No, slower, go slower! ... Okay, maybe a teensy bit faster."

I can't believe I've been missing out on this all my life! She tastes... just... awesome! There's no other word for it. Well, maybe Twilight knows some words for it. I wonder if Rarity will let me do this again later? Or... I wonder what Twilight tastes like? I bet like grape or something... Is that weird to think that? That's probably weird. I probably shouldn't tell Twilight that.

"Okay, darling, now go to the clitoris. Only for a little bit, though, remember, you're only teasing right now. Just a couple flicks..."

The clitoris was a little easier to find, now, very nearly peeking up from between Rarity's lips on its own. A couple swipes across it with her tongue set Rarity's legs shaking.

"Oh, divine, darling, simply divine. Now, in between the lips again for a while."

Wow, this is almost exhausting. My tongue's getting kinda sore, it's not used to all this work! Stallions are way easier... but they don't even taste half as good... I guess I can't really pretend she's a stallion anymore, can I?

"Try to... pace it... with my breathing... Dashie..." Rarity muttered between exaggerated breaths, trying to effectively instruct her friend. "Ohhhh yeah. Just like that... Now... Whenever it seems like I'm about to finish, just grab onto my clit with your lips and hold on for dear life. Don't let go until you know I'm d-d-done. Oh my..."

Oh yeah! I think I'm getting pretty good at this. Well duh, I'm good at everything. She's starting to tense up... Am I doing something wrong? No... Wait, I think that means I'm doing it right. Man, she's getting so warm!

"MMmmmh... Oh yeah... Don't stop, Dash. Don't stop!"

Alright, on the home stretch, Dashie, don't mess up now. Between the lips...

"Awwww, yes, yes!"

Into the cervix... or... vagina, or whatever...

"YES! YES! FUCK ME!"

Now grab on and don't let go!

Rainbow locked her lips around Rarity's clitoris, running her tongue across its tip fervently inside her mouth, putting Rarity through a rather long and intense orgasm. She rocked back and forth on the bed, moaning and panting like mad, for two straight minutes as Rainbow kept her mouth locked on that extra-sensitive spot.

She said to keep it up until I was sure she was done... How am I supposed to be sure? I guess she looks pretty done... And she sounds done... Is she done? I guess she's done.

Dash finally released the unicorn.

"Oh my... Dashie... That was... stunning. The only word is stunning." She said as she bent forward, reaching out to pull the pegasus into an embrace.

Rainbow giggled as Rarity dragged her down to the bed in her arms. "You taught me how!"

"Oh, but you're a natural, darling. If you ever, EVER have stiff wings again, and you can't get Twilight to help you out with them... Well I wouldn't be opposed to doing another quick trade."

"You bet! I'd love to do this again!"

"Oh... And... Oh, I think I've figured out just what to do for your outfit. Your tongue is the most inspiring thing I've experienced all year."

"Oh, good. So we're done fitting, then?"

"No, dear, of course not. If anything, more fitting. At least all day tomorrow."

"Oh, come on!"

"You promised, Dash."

...