Well she would never have to worry about that. He chuckled fondly when she called him hers. As if that wasn't something he already knew but that didn't mean he didn't love hearing it from her lips.

"Bursting would be a waste. Then I can't make you even happier~" He insisted with a mock frown. It was his goal after all to make her happier than anyone else after all. Even if he hadn't admitted such a cheesy goal to Lucy herself.