Prompt: "It reminded me of you."

The sight of her yellow Bug outside their home made Killian grin. He'd spent the day with Henry; they dueled each other with twig swords and vanquished their rumbling stomachs with the greasiest offerings Granny could give them. He hastened his gait as he came up the walk. The quiet swish of their white picket fence was yet to be lost on him—sometimes it was more impossible to believe that he had Emma than it was to think he'd once been buried in the Storybrooke cemetery. It was a perfect impossibility, that they really had their future together.

Meeting the door, Killian fumbled with the key (Emma made him promise he wouldn't lock pick his way in with his hook anymore). When he opened the door, he was surprised to see her standing not far from the entryway, bent over something he couldn't yet make out.

"Normally I wouldn't question the view," he said, closing the door behind him. "But love, what are you doing?"

Emma spun around, and for a half second Killian was so captivated by the way her blonde waves twirled around her, by the way the brilliant smile on her face could have blinded even the sun, that he missed what she was holding in her outstretched palms.

Then, he saw it move.

"Swan?" Killian's eyebrows arched up. "What the bloody hell is that thing?"

"I named it Hook," said Emma proudly. The hermit crab crawled between her hands, tickling her skin with its prickly legs.

Killian's face dropped. "You named it what?"

"Captain Hook, actually. I mean, have you seen the size of that claw? It reminded me of you."

"You're not funny, Emma Swan."

"I'm hilarious, Killian Jones." Emma cupped one hand around the other, keeping the hermit crab from diving out of her palm. She stuck out her hand, garnering Killian a better look. As he peered down, the crab ducked into its shell. The pirate looked affronted as Emma asked in a playful coo, "Did your daddy scare you?"

"I'm not the father of a bloody crustacean, Swan," said Killian seriously. The word 'father' bounced around his head a second longer than it should have, caused an oddly warm feeling to nest in his stomach.

Emma watched his face soften and smiled gently to herself. A step from her closed the remaining gap between them. She offered her hand and two beady eyes emerged, slowly, from the safety of the hermit crab's shell.

"Not even with me?" she pouted.

Killian sighed, felled by the quiver of her lower lip that he knew was completely fake. He offered out his hand and after a hesitating moment, the crab crawled from Emma's palm to his.

"Perhaps with you," he relented.