Summary: Natsu learns that he has a fetish for Lucy in her glasses, but that's all right. It turns out Lucy has a fetish for Natsu in his glasses (much to Nashi's mortification)…

Pairings: Natsu/Lucy

YouTube Prompt: A Natsu/Lucy video to 'Because I Love Her' from Swan Princess 3 (/watch?v=rv_m3Ly8t0Q) because it so totally sounds like Natsu "Why should I apologise? Just because I love Lucy and need her doesn't me- oh fuck it, I'll go and apologise".

They were working on a job that was much more to Lucy's liking than Natsu's, which of course, immediately meant that they were doing a lot of research and virtually no fighting at all. This left Natsu and Happy slumped over the library table while Lucy was reading hungrily through several fat, big, dusty, tomes of knowledge with the help of her wind-reading glasses.

She had just happened to look up to catch Natsu staring at oddly. Her cheeks instantly flushed as his green eyes had darkened due to his dilated pupils and he seemed to be intensely interested in her face for reasons she cannot, for the life of her, explain.

"What?" she demanded rudely.

Natsu instantly jabbed a finger at her glasses direction. "Are those magical?!" he blurted out stupidly.

"They're my wind-reading glasses," Lucy said flatly, "of course they are."

"No," Natsu shook his head and then shot Lucy a glower that simply read 'stop thinking I'm that stupid'. "I mean do they have a glamour spell on them?" he asked.

"No," Lucy blinked. "Why do you as…"

She trailed off as Natsu seemed to have moved at an impossibly fast rate and was now herding her up against a wall, his arms caging her in, and his face far too close for something called personal space to exist. Lucy tried valiantly to finish her sentence but a strange croak crossed with a squeak came out instead when she caught the burning intensity in Natsu's eyes.

Her knees may have wobbled and almost gave out then.

(But don't tell the smug git.)

"You suit them," he said simply.

His breath blowing a deliciously warm breeze against her face. She tried not to shudder at. Tried. She wasn't successful as you can tell by his smirk. She nervously licked her lips which only further intensified Natsu's stare causing her to flush an even brighter pink. "Yeah?" she finally managed to croak out.

"Yeah," Natsu agreed huskily. "Like a sexy librarian or something."

"Well then," Lucy smirked as she readjusted her glasses, shot him her sexiest look, and then purred; "How may I serve you?"

Natsu grinned and opened his mouth, probably about to say something filthy when -

"Oh come on guys!" Happy moaned. "I'm right here!"

Both Natsu and Lucy sighed heavily as they slumped in resignation and went back to work while Happy continued to scold them for being icky and weird.

(This so didn't stop them from playing Sexy Librarian as soon as they got home and Happy was out playing with Wendy and Charle.)

Twenty years or so later….

"I look old."

This was what Natsu had to say for his new reflection. After almost burning Lucy's hair again (and completely missing the bad guy) with a long distance attack, his loving wife dragged him to the opticians and it turned out (much to his horror) that Natsu was in need of a pair of glasses.

And now here he was, looking at himself, and seeing an old man. Hair on the sides starting to turn grey (so totally Lucy and Nashi's fault, could his girls at least try to keep out of trouble?), his muscles weren't as defined as they used to be, he was dressed even more conservatively than before, and now his silver rimmed glasses added to the oldness of his appearance.

"Ha!" Gray barked. "You are old!"

"You could talk…Grey."

After all Natsu might be a little grey round the edges but Gray had the full salt and pepper looked, and there were wrinkles on his face, and he was dressed in old man underwear.

"Why you little-"

As if sensing a fight about to occur (and that her husband was suffering from some vanity issues), Lucy moved quickly in between Gray and Natsu, her hand firmly on Natsu's shoulder as she parked her bum onto his lap.

"I think," she purred, her hand moving slowly from Natsu's shoulder, up his neck, and to his face, "that they suit you," she finished as she leaned in close. Her forehead against his and her breath fogging up his glasses. "Make you sexy."

Natsu smirked at that. "Yeah?" he murmured huskily, his lips almost against hers.

"Oh yeah," Lucy agreed. "Like a sexy teacher about to punish me."

Natsu was going to make some sort of joke (because punishment and Lucy always meant a joke about Virgo and Lucy being a dominatrix) when the sound of several people gagging and an even louder, more embarrassed, groan took both his and Lucy's attention from one another.

"Oh come on!" Nashi, their seventeen year old daughter, which meant, like all teenagers, she firmly believed that they shouldn't have a sex life, moaned very loudly. "Must you do that in front of me?!"

"And me?" Gray added, equally disgusted.

"I think," Lucy grinned mischievously at Natsu. "That our daughter is suggesting we get a room."

"I think so too," Natsu agreed eagerly.

Lucy fluttered her eyelashes at him. "Shall we?" she purred once more.

Natsu pulled his hand away from under her skirt (he couldn't even remember when he put it there) and gestured politely to her. "After you."

And at that, Lucy happily jumped off of Natsu's lap, took his hand, and dragged him to the nearest closet to show just how sexy she found his glasses…..

Nashi, however, bashed her head against the table. Repeatedly. And hard. In great hopes of erasing that memory and embarrassment from her life.

"Oh my God!" she groaned between thumps. "Oh my God! Why can't I have normal parents?!"

"That one backfired on you," Ur chuckled beside her. "Huh?"

"SHUT UP!"

And with that Nashi started the seventh brawl that morning by kicking Ur so hard that he flew into Laxus.