Bonds and Boundaries

It didn’t bother Shining Armor as much as it maybe should have.

The two were not only close as siblings, but they were a lot more affectionate than most - perfectly fine with long hugs, nuzzling, and pecks on the cheek. They’d cuddled together on occasion, with Twilight curled up in Shining’s embrace. They’d even shared the same bed from time to time - though this had become much rarer as the two had grown. Given how much contact they made, it was surprising that such an accidental lip-lock hadn’t happened sooner. It was actually less embarrassing than the fact that their parents had nearly walked in on them.

So, as he settled in for the night, he hadn’t quite prepared for Twilight to come into his room. “Shiny, before you go to bed, can we talk about something?” She approached his bed, looking intently at him.

“Yeah, sure.” He sat up in his bed, suddenly concerned. “What is it?” he asked, despite knowing the answer. He’d thought she had taken it in stride like he had - she certainly hadn’t mentioned anything the rest of the night. Though, perhaps she just needed to gather her thoughts… either that, or she just wanted to finish studying first.

“Did you… enjoy what happened earlier?”

Shining grimaced a little - this was very much a question where the wrong answer could be disastrous. “I, uh… well, why do you ask?”

“I was just curious… I kinda liked it, so I wanted to know if you did, too.” Her reply was even and matter-of-fact, a tone Shining was used to hearing from her. But it left him unsure how to respond. She said it so… innocently. He wasn’t quite sure what was going on in her head.

“I… well, a little. I mean, it was just our lips touching on accident, it wasn’t really much of a kiss.” He chuckled. “There’s more to good kissing than just pressing lips together.”

“I see.” Twilight fidgeted slightly. “How… how does it work, normally?”

“Well…” Shining frowned. “Why do you ask?”

“I… thought it was nice, but if there’s more to it, I want to learn, so next time it’ll be better.”

Shining shifted a little. Being asked to explain how a kiss worked was not something he’d thought would happen to him. “Well… it’s kind of hard to explain. Have you looked in any books?”

Twilight frowned. “I have, but they kind of… gloss over the exact details. It’s really not the same reading about a kiss. The reality is… different.”

“Hmm.” Shining had to wonder if the books she’d consulted were sultry romance novels, something he had little experience reading. He was fairly certain she had a hidden stash of shipfics somewhere, at least. “I think it’s something you have to… learn as you go.”

“I see…” Twilight’s voice lowered slightly, but noticeably. “Can… you help with that?”

Shining’s eyes widened a little. “Excuse me?”

“Well..” Twilight blushed suddenly, looking away, but her voice kept its usual matter-of-fact tone.. “II mean, it’s not like I have anypony else to practice with - that was my first kiss, you know.”

Shining had assumed as much - Twilight’s dedication to her studies had its issues. “Yeah, but… it’d be kind of awkward…”

Twilight looked back at him, a sudden determination in her voice. “Shiny, you’re… well, you’re the only pony I’d feel comfortable doing this with…” She fidgeted, starting to blush. “I know it’s a little awkward for this to suddenly come up, but…”

Well, Shining had told himself that accidentally kissing her wasn’t that embarrassing, but doing it deliberately was somehow… different. Still… when had he ever passed up a chance to help his little sister?

“All right.” He shifted to make room for her on the bed, and she climbed in with him, smiling slightly as she lay on her side facing him. The two were pretty close, practically hugging each other, almost kissing even as it was.

“So, uh…” Twilight still blushed a little, but her breathing slowed as she started to relax. “Well, obviously I don’t know how to kiss properly…”

“All right.” Shining bit his lip. A part of him had been hoping he wouldn’t have to take the initiative on this. “Well, you… it’s… you kind of…” He tried to think of something to tell her, some bit of preparatory advice. But, just as he had said, it was really hard to explain.

So, he decided to just go for it.

Twilight let out a muffled little yelp of surprise as Shining suddenly pressed against her, her lips now covered by his. This wasn’t just simple contact - Shining took an active role, while going back and forth between gentle touching and stronger pressure. Meanwhile, he opened his mouth just a little, brushing his lips across hers before giving her a quick lick. Twilight seemed too overwhelmed to respond, just weakly pushing back against him. After a few long moments, however, he drew back, now blushing a little himself. “Something like that.”

“I… um…” Twilight was blushing even harder. “Let me try…”

This time, she pressed into him. As usual, she was a quick learner, repeating much of what Shining had done to her, although she didn’t experiment or vary her pattern much. Still… Shining had to admit it was an improvement. When finally she drew back, she took a deep breath. “How’s that?”

“Better.” Shining said, smiling a little.

“How about… with tongues this time?” She blushed even more, starting to show a side of her Shining hadn’t really seen. The only time she got this giddy was when she was reading a new, particularly good book, but that was still different than this. Though it felt weird for his sister to enjoy kissing him this much, he couldn’t help but feel some pride at being able to give her that much pleasure.”

“...All right, sure.” After a moment’s hesitation, Shining kissed her again, this time licking at her lips and pushing at the gap between them. She quickly took the hint, opening her mouth to allow his tongue in. He lapped around her mouth for a short while, occasionally caressing her tongue with his own.

When finally he drew back, both were lightly panting. Twilight didn’t say anything this time, just smiling at him before giving french kissing a try herself. Both of them went at it this time, their tongues constantly struggling with each other as they made out.

It was a long time before Shining pulled back, and he would have gone on even longer if it hadn’t been for something that had come to both their attentions. Namely, a very inopportune hard-on. His shaft had unsheathed fully, and even now the tip was pressing against her waist.

Shining blushed, both of them glancing down towards where their hips were nearly touching, although neither could actually see anything. Twilight giggled for a moment, before Shining interrupted her. “I, uh… think that’s enough for tonight.”

Twilight giggled even more. “Got something to take care of?”

“Hey!” Shining gave her a glare, though as always there was no real venom to it. “What I do in bed at night is none of your business.”

Twilight stopped her laughter and smiled. “Sorry. Thanks for… showing me kissing.” She spoke softly once more. “And… I’m glad you enjoyed it. Did I do well?”

“Yeah…” Shining chuckled. Pretty good for your first day of kissing.”

“I’m glad to hear it!” Twilight rolled off his bed and onto her hooves on the floor. “Good night, Shiny.”

“Good night, Twily.” Shining nodded to her as she quietly left the room and shut the door.

He spent the next few minutes in thought, too preoccupied to even jerk off. He’d gone into that a little too easily… and for that, matter, so had she. But… it felt oddly natural. It made sense that they could do something so… personal. He trusted her more than anypony else, and she certainly felt the same way about him. Enough to do something as silly as practicing kissing.

He chuckled, before settling into sleep. It really did seem silly, but who better to do silly stuff with? She was somepony he felt he could be completely open with, without feeling embarrassed. Maybe they’d laugh about this tomorrow… away from their parents.