Soft as Marshmallows

The library was dark, and was full of smells that the Doctor personally enjoyed. The smell of old and new, that scent of books that made one feel that they were in a calm environment full of knowledge and secrets. Even though he'd already read all of the books that were likely there, he still felt that small tugging need to explore the little mysteries that might be tucked away in the corners of this ancient library tree. He couldn't help but snicker to himself at the thought of a library in a tree. There was something brilliant about it, and somehow ironic, seeing as books were made from trees after all. He wondered if any of the books might have been made from the hollowed out bark of this particular tree, and he was very tempted to press his ears to the tree's body and feel how old it was and learn its story. But this oddly giddy daydream of his was swiftly blown away at the sound of hooves lightly trotting down the stairs.
The Doctor turned his attention to the purple mare who was clearly nervous, nearly causing him to lose his own composure. Something about her expression and the way she moved made him feel a lot more unsure than when he'd faced the more forward and eager mares from before. He shifted his ears back politely and bowed his head as he turned to face her head on, forcing a coy smile but unsure of what to say.
“Well, um, hello, Doctor.... Welcome...” The young unicorn's voice was soft and shaking slightly, and the Doctor could tell she was trying her best to do things right. Her eyes shifted to the left a moment, looking away from him as she paused with a slight flush rising to her cheeks, “The bedroom is upstairs... So, you know...” She then turned her head to the right, gesturing to the stairway, “If you come with me we can start.”
“Well, it doesn't have to be in a bedroom.” the Doctor responded with a quirky grin, trying to lighten the awkward mood a little. It didn't work, instead resulting in making the unicorn shift her eyes and push out a forced giggle. He almost immediately felt like a fool and lowered his head sheepishly, obediently trotting to the stairway. “But traditional is best so, yes, bedroom. Good. Right.” He cleared his throat, “Erhm, Twilight, yes? Twilight... Sparkle? Your name?”
The mare nodded, relaxing a little at the comfort of knowing he remembered her name. “Y...Yes, that's right.”
“Well then, Miss Sparkle. You may lead the way!” he lifted his head pridefully again, reassuring that he knew what he was doing and that she could trust him.

When they reached the lofty bedroom, Twilight crawled up onto her bed and laid herself out over it, giving the Doctor a shy smile. He didn't approach right away, though, because he could tell she was nervous and something inside him insisted on finding answers. He told himself before he wouldn't get close, that he'd just swoop in, get the job done, and leave, but he just couldn't bring himself to do that to this particular mare. Something in her eyes made him push back his more primal instinct as he put his hooves on the edge of her bed, his voice softening in concern.

“So... This really is your first time?”

She seemed surprised at the question, glancing away from him and closing her eyes tightly as she nodded vigorously, “Yes, I really meant it! I wouldn't lie about a thing like that, so I--”

“Are you sure you want this to be with me...?” he interrupted in a stern voice, watching her face intently.

“I- Yes, I want--”

“Because it could be anyone, you know.” he interrupted again, leaning closer to her and keeping his voice soft yet serious, “You might fall in love some day and you'd have lost out on a very special moment. It's not too late to change your mind.”

There was a long and quiet pause between them, Twilight staring at the sheets and biting her lip while the Doctor waited for her answer. A sadness seemed to grow in her eyes, and her shyness melted away into a solemn acceptance.

“...... I don't think that moment will come for me. Not now. Not anymore.” she then looked up at him, another forced smile as her eyes seemed to light up in a mix of tears and confidence. “So that's why... If I had to choose anyone now, I choose you.”

The answer threw him aback, and there was another long silence as he just stared at those eyes of hers. They were so familiar somehow, he knew exactly what kind of eyes she had but he just couldn't place how he knew or why. Whatever the reason, he couldn't help but silently lean himself forward to cup her face tenderly between his hooves as he planted a long and gentle kiss on her lips.

He could feel her body shaking, and this prompted him to move a hoof down to pull her closer to him as he broke softly from the kiss, giving her a small nod. “Then... If that's your choice, I wont let you waste it.”

“Doctor...?” her voice was about as fragile as a falling leaf in autumn, and she stared at the stallion in wonder. She hadn't expected him to be this way, not after knowing his reputation for his 'lovemaking' escapades.

“Shh.” he nuzzled his nose gently to one of her ears, whispering, “I know. I understand.”

All she could do was stare at him, coming to a similar realization as he did. The eyes. The way he spoke, the misery he held in his voice and the empathy he was suddenly showing... She wanted to protect him, more than ever before. This was enough for her to be certain with her decision, and she leaned her head up slightly to return her own kiss to him.