Sisters Help With Everything

"Spike... what are sects?" Sweetie Belle asked.

The young filly and equally miniature dragon were sitting alone, together, in one of the lonely supply rooms at the Carousel Boutique--specifically, the yarn storage. Rarity kept telling Sweetie Belle how she was sure that oversized, lumpy, yarn-based sweaters would soon enough become the hit fashion of all of Equestria... but it'd been four years since the big yarn buyout, and so far most of the supplies had just been sitting around gathering dust, waiting for the big ugly Hearth's Warming ugly sweater revolution to take place.

"Uh... sects?" Spike scratched his head. He and Sweetie were sitting on one of the boxes in the corner, a place away from prying eyes and as much privacy as a young couple could ask for. No matter how often the two of them disappeared together, nopony ever seemed to look for them in here. "Hmm... I think I remember hearing that word in one of Twilight's reports. Sects..." Spike scratched his head again. "Do you mean like groups or tribes of different types of ponies?"

Sweetie Belle shrugged. "I dunno. I don't think so. I just heard it's what older ponies do when they're in love."

"Oh." Spike blushed slightly. "You mean, uh... sex?"

"Yeah, I think so." Sweetie smiled and shuffled closer to Spike, pressing her body into his.

A bead of sweat rolled down Spike's forehead slowly.

"Um... I've heard of it before, but I don't really know what it is."

Sweetie appeared to be half-listening as she studied a spot on Spike's ear. She nuzzled her face into his neck, feeling the cool sheen of his scales against her fur. Spike was blushing even harder now, and Sweetie beamed.

"Oh, geez..." Spike shuffled uneasily on his box-seat. Sweetie was always finding new places and ways to make him feel strange and tingly inside. Now she was nibbling on his neck, and jolts of tiny electricity seemed to shoot up his spine each time her lips made contact with his scales.

Sweetie kissed all the way up to Spike's forehead, then planted her mouth squarely in front of his.

Spike gulped nervously. "I'm still not very good at this," he said.

Sweetie giggled and put a hoof to her mouth.

"Who told you that, silly? I happen to think you're really good at it."

"You mean kissing?" Spike asked.

Sweetie nodded. "Uh-huh. You make me feel all warm and sizzly inside... Come on. Let's do it some more."

Spike didn't need to be asked twice. Even as unsure as he was, his claws still seemed to fit so naturally on Sweetie's shoulders, pulling her close to him as their mouths met. Spike liked to start slow, and gentle, but he could only squeeze in one or two gentle pecks on the lips before Sweetie pulled him close, hard, and smashed her lips into his, pressing and grinding her mouth into Spike's like she was hungry for something only he could give her. Then the tongue would come out, and before Spike new it he was in a whirlwind of back-and-forth, kissing and squeezing his body into Sweetie's, the two of them running their hooves and claws along each others' backs, the two of them grinding their bodies into each other absent-mindedly, rocking back and forth on the box as they made out.

As usual, it only took a few minutes before both Spike and Sweetie felt very unusual.

"Look, it's doing it again!" Sweetie said, stopping to wipe a bit of saliva off her mouth with her foreleg.

Sure enough, Spike's penis was rising to attention, pointing straight up in the air. Suddenly, it seemed like it wanted attention.

"Um. Sorry about that. It still just kinda, uh, happens..."

"It's okay. I get stuff like that too. My, uh, between parts... my cunny, uh... get's all wet, when we kiss. So I think it's normal, probably."

"Oh... yeah." Spike fidgeted nervously in his seat, half-hoping to conceal his hard-on, but also for some strange reason hoping that Sweetie would touch it. Hoping but not knowing what would happen--only that it would be really, really good.

The two of them stared at Spike's erection for a moment. The air in the room was thick, tense and full of the smell of premature hormones.

When the door opened without warning, both Sweetie and Spike froze. There was only one pony who would be looking for yarn at this hour.

"Now, where did I put that rural collection? I've been waiting over a year to do something with those pumpkin hues..." Rarity strutted into the storage room like she owned the place (which, she in fact, did). It took her the better part of five seconds to notice there was more than yarn inside the room.

Her eyes fell on Sweetie Belle. Noticed how close she was to Spike. Fell on Spike. Noticed his claws folded together in his lap to hide his unfortunate... excitement. Did some slow math in her head, putting the pieces together, finally understanding where Sweetie had been spending so much of her time the past few months, and why she always seemed to smell like emeralds when she came home...

"Oh. My goodness."

Spike glowed crimson and bunched his claws tighter together over his lap. The head of his erection still managed to peek out behind them.

Sweetie clung to Spike and let her head sink until she was staring at the floor. This would most likely not go well.

"Um... well. I guess that's why I've been seeing so little of you lately, isn't it, Sweetie? You've gone and gotten yourself a young dragon suitor, haven't you?"

"Uh... I guess?"

Sweetie was blushing too, pink cheeks glowing in compliment to her fur.

"Oh, Sweetie, please don't be embarrassed. I was caught many a time in my youth in similarly... compromising positions. I'm just delighted to learn you've gotten your first taste of... *l'amour*."

"Huh?"

"Love, Sweetie Belle."

"Oh. Um... yeah, I guess."

Sweetie and Spike looked into each others' eyes, blushed, turned away, and then faced each other again, desperately longing for the kiss they weren't sure belonged in front of Sweetie's older sister.

"And I'm certainly not one to stand in the way of young love. So, I suppose, I'll just grab my yarn and, um, leave you two to your... explorations, shall we say?"

Spike and Sweetie both nodded, mute.

Rarity smiled.

"Very good then. I'll just... take this and, um... one of these..."

"Rarity?" Sweetie asked, voice tentative but clear.

"Oh! Yes, Sweetie Belle?" Rarity turned to look at the couple again, making painful effort to not stare at Spike's still obvious and irrepresible excitement.

"What are sects?"

"...sex," Spike mumbled under his breath.

"Oh, right! What are sex?"

Rarity blushed a bright crimson for a moment.

"Oh, my word. I had no idea you two were... then again, when I was your age, I... not with quite the same company, of course, but there were a lot more opportunities for a young filly your age in the city at that time... oh, good heavens. Well, I suppose you are at that age of curiosity, when the inklings of affection in a young pony turn to... lust, and other complicated things. My goodness."

"Do you think that means she's not gonna tell us?" Sweetie whispered to Spike.

Spike shrugged.

"Well. I must say I'm very impressed that you came to me to ask that question. Or... rather than you asked it, regardless of the circumstance. And sex is a... very complicated subject, I should say. But there's no reason it's not something you can learn with the help of your big sister. And as your guardian, I will make it my absolute duty to educate you in the nature of love from here-forth!"

Spike and Sweetie shared a look.

It said, 'What have we gotten ourselves into?'