Well he had the unpredictable ideas while she had the imaginative ones. A perfect combination when the two met the way they did. Natsu let out a rumbling groan as she continued to move against him. He was quite impressed she could still think about proper terminology at a time like this.

"Pretty sure you're every single one of those things. Though I guess I'm mmmmm leaning more towards lover and mate~' A good thing he got that thought out before she bit at his neck again only for him to feel her warmth moving off of him a little. But then he felt it. Felt that heat and its source straying closer to his length. One small shift of his hips and he'd be inside her, joined in that delicious way that had quickly become his most favorite way to be with Lucy outside of every day adventures.