He didn't say it just to make her happy though. That was what added to the sentiment even more. Whenever Natsu said something to Lucy those were his honest thoughts and feelings laid bare to her. Unless he was out to prank her. Then he might have bent the truth a little bit but never maliciously. All in the name of fun~

But he would be lying if he didn't absolutely love the way her smile grew just that much more brighter whenever he said those words. She was dazzling to behold, shining brighter than any hoard of gold a dragon could hope for. Feeling that thumb against his cheek, he playfully turned his head to capture that finger between his lips. They'd just shared a mindblowing intimate moment and he still had it in himself to play with her.

"You gotta. I mean you're bright enough to turn this place from night to day right now~'