Twilight gave a forlorn sigh and closed the umpteenth book she'd been scouring. Not a hint, or a clue, or a single scribble of anything having to do with a stylized S on a wall. Here she was in the middle of a mystery, and the answer was hidden somewhere in her memory, but she couldn't find it.

"ARRGGHHH!!" She throw a telekinetic shove out towards the towering stacks of books she'd piled around her and sent them toppling to the floor. Here she was, the only pony in a position to save her friends from a horrible fate, and she couldn't remember the single clue that could rescue them all! Something firm pressed against her shoulder.

"Chill."

Twilight glanced over at the blue pegasus smiling gently next to her, and gasped when Rainbow pulled her into a sudden hug, rubbing her hooves softly along Twilight's back. ...wow. That really DOES help calm somepony down...

"We're gonna get this. We're gonna be okay. You're the smartest unicorn, like ever, and there's no puzzle that can keep you down. You're awesome, Twi, just keep focus and remember that." Rainbow said cheerfully, forcing a little smile across Twilight's lips. Even though they'd met at Rainbow's pad to discuss the previous events, (With the help of a cloud walker spell) Rainbow could tell Twilight was desperate to get tt the library to do some studying.

And now? Well, now they were in the library, reading through endless old tomes and parchment, looking for the slightest hint of what the 'S' on the wall could have meant, but they weren't coming up with anything helpful, and Twilight was starting to get frustrated.

"Looking through Zecora's potion book, I can't find anything that might use 'Awesome Sauce' on a scale like they were stealing from us. Only a drop or two is used for fertility potions and boy juice is used for an aphrodisiac...So...I think we can totally cross those out. " Rainbow explained, peering over the massive tome they'd borrowed from Zecora. Twilight had admittedly, never seen Rainbow Dash so engrossed in a book that wasn't a Daring Do novel, but she seemed beside herself, wanting to help, and Twilight couldn't turn her away, as much as she preferred to study alone. She was like a puppy, really, eager to please and begging for attention. Loyal to a fault and ready to go the extra mile to help a friend. The kind of mare anypony would be lucky to call a friend.

"I just...I can't remember..." Twilight sighed. Rainbow nodded her head quietly, and squeezed her hoof over Twilight's shoulder. Twilight gave a sorrowful little sigh and leaned in against Rainbow's frame.

"I just hate not being able to help. This is like my first Winter Wrap up, but ten times worse. I just don't know what to do. " She groaned quietly. Rainbow frowned and peered around the library.

"Yeah? You can't think straight? You think they're gassin' us again?" She growled. Twilight forced a dry chuckle and shook her head.

"No, no. I think we'd be able to tell by now if we were being gassed at this point. It isn't that. " She mumbled, flattering her ears against her head. Besides, if we were, I'd get that orgasm you owe me.

"...................what did you just say?" Rainbow hissed quietly. Twilight's cheeks turned scarlet and the Pony turned about in shock. No...did she say that out loud?! NO!

"What? Me? Nothing! Nothing, heh, just, um, thinking to myself." Twilight giggled, but Rainbow frowned, turning about on her hooves to shove her nose up against Twilight's firmly.

"Oh. I heard what you said, egg head. I'm just curious to know how you think I owe you a girlgasm. You're the one that told me to stop, you're the one that shoved her privates in my face, and you're the one who told me to lick you. You BEGGED me. How exactly do I OWE you anything?!" Rainbow snapped, delighting at the way Twilight hopelessly squirmed under her verbal onslaught, blushing furiously with every word.

"I...I um.....y, you're right...I'm sorry..." Twilight squeaked quietly. Rainbow's playful glare softened and she reached out to rest a hoof on Twilight's shoulder again.

"Hey, Twi, chill, I was only playing. We're cool. Don't worry about it. "Rainbow chuckled as lightly as possible. Twilight frowned.

"No, we're not cool. You're right. I owe you." Twilight said with a sharp little huff of breath. Rainbow blushed gently and shook her head.

"Hey, I said I was only playing...are...are you sure they're not gassing us again? I don't feel anything..." She stammered. Twilight shook her head, a cruel little grin twisting over her features.

"I'm not playing." She said coyly, causing Rainbow to blush even harder.

"...F-for real...I mean...S- Shouldn't we get back to the books?" The pegasus gasped, and Twilight grinned.

"What? You honestly think I wasn't turned on with your head between my legs? I mean, you got a good up close look at my privates, I wouldn't mind a peek at yours. I bet you've got the sweatiest little pussy in Equestria. " Twilight grinned, delighting in the way Rainbow Dash hopelessly squirmed under her verbal onslaught, blushing furiously with every word.

"T-thats....that's not fair. "She whispered quietly, biting at her lower lip, while Twilight leaned in, nuzzling tentatively along Rainbow's neck.

"Lets see...buzz words....Dirty....sweaty....juicy little pussy. You smell so strong...so musky...especially right down there...Like your just begging for someone's nose to press up right against your private little puff of pubic fur. "Twilight whispered, loving the way Rainbow gasped and trembled. Oh, she'd hit the nail dead on the head. The poor pegasus was biting at her lower lip with the cutest little embarrassed whimper squeaking out past her lips.

"Twilight...s- stop...okay? It's not...it isn't funny..." Rainbow whined, ears flattening against her head. She didn't want to be teased- not like this, not about her embarrassing secret fetish. Twilight was going to far...but...then...who said Twilight had to be teasing? What started out as a coy joke about their experiences together suddenly turned to a hot, passionate, smouldering kiss, when Twilight squeezed her eyes shut and forced herself forward. They held that way for a few seconds, both shocked and broke contact with a little bridge of spit clinging between purple and blue lips.

"...So...um..." Twilight muttered, squirming now when she stood in front of Rainbow Dash. "If.....if you'd let me..." No no no! You're doing it wrong. Remember the dreams? Rainbow likes to be put in her place. To be taken down a peg. She likes being under your control.

"I mean...um...let me see that little puss, Rainbow...I'm gonna give it a tongue bath!" Twilight snarled, and Rainbow couldn't help but burst into giggles. Twilight was absolutely adorable. The purple Pony's ears wilted at Rainbow's boisterous laughter and the mare gave a quiet whine.

"Are you serious, Twi? You want to give my little puss a tongue bath?! Do you even know the first thing about eating out?!" Rainbow snickered, forcing Twilight to blush bright pink.

"I...I um...I've read-." She started, before gasping at Rainbow's sudden, forceful grab. She yanked the little unicorn down firmly, landing on her rump in the process, and forcefully pressed Twilight's head between her legs, grinning the whole time.

"The first thing, is you gotta really REALLY want it. I mean, you gotta be dyin to get down there, ya know?!" Rainbow giggled, grinding her pelvis gently against Twilight's twisted muzzle. The purple unicorn gave a groan and squirmed against her friend, finding her cheeks heating up hotter and hotter with every word.

"Ugh...it really IS sweaty...this must be the muskiest fur in all of Equestira!" Twilight snarled, her voice muffled with Rainbow's privates. She grinned when she caught sight of Rainbow blushing hotly, her bravado melting almost instantly in turn.

"I...W- Well, uh...You've um, you've got to...uh...start slow...s- start...real slow, like...Nnnnghhh...l-like that..." Rainbow whimpered, feeling the first gentle caress of Twilight's tongue across her nethers. While exceedingly new at the practice, Twilight had become rather accustom to the sensation of a tongue across a pony's privates. The mechanical tongue they'd used was heavenly, and if Twilight could only mimic the slightest bit of that...

She leaned in, brushing her nose softly across Rainbow's sex, sliding her tongue across the tender blue lips like she were taste testing a popsicle. Just the hint of her tongue pressing it to that little quivering crease. It forced a buck of her hips from Rainbow and the pegasus gave a quiet whimper.

"Y-Yeah thats...that's real good, Twi..." Rainbow whimpered, but Twilight was only getting started. She took her time, dabbing her tongue in teasing little slurps over that hot pussy, working in teasing, tantalizing licks over her mound and around her thighs. She wasn't pushing Rainbow through, not yet- she wanted to toy with the Pegasus first. A kiss here, a kiss there, delighting in the way Rainbow squirmed each time.

"Tw- Twilight..." Rainbow shuddered quietly. Twilight leaned in, pressing her nose against Rainbow's pubic tuft and slowly started to invade with her tongue. Inch after inch, that little pink, twisting organ drove itself inside of Rainbow's pussy, feasting on the tangy juices hidden within.

"MMmmmm, no wonder they took you...you're delicious..." Twilight grinned, using the vibrations of her voice to add to the torment of the pegasus-only to grasp when the taste suddenly changed. Tangy and bitter turned to tangy and sweet, and Rainbow gave a sharp squeal of pleasure as her climax showered down around her- flooding Twilight's muzzle in the process.

"OH, OH TWILIGHT!!!!" Rainbow screamed, thrusting her hips forward into the surprised mage.

"ACKPT! R- Rainbow?! Is...Did you..." She paused, pulling up, and peering at the panting pegasus quietly- who quickly turned a dark, dark shade of red.

"I...I'm ...I don't usually...T-That hasn't ever...I..." She squeaked helplessly, trying to scoot back away from Twilight on her rear, sputtering impishly.

"You came already? Was that ten seconds flat?" Twilight grinned. Rainbow gave a whimper, and started to stand, already heading for the door with a cry of humiliation when Twilight tackled her right back into the ground.

"I didn't know I was so good..."

"I- I'm sorry, I..."

"Don't worry, we'll practice. I'll make you study really really hard...we'll take as long as it takes for you to learn some stamina. " Twilight churred quietly, nuzzling into Rainbow's neck. Rainbow gave a quiet sigh and closed her eyes, almost melting into Twilight's arms. Everything was going according to plan and Twilight didn't suspect a thing. Rainbow grinned.

Author's Note

Aheheheheheheheheh.

A non canon bonus chapter. Just to fry your brains a little with that last few lines. >=3