Fulfillment. Yes, that's a good word for what they have. They fill up the parts in each other that were empty for so long.

"Mm-hmm. But he usually crouches." Life amongst the humanoid races has taught Groot to diminish himself, she fears. It's hard to talk to him about that kind of thing. She worries for the big guy--he's strong and he's sweet, but wood is brittle and she's seen what happens to trees that are too rigid to bend in a storm. If a little wind can break them, what would a storm of emotions do?

If he's looking for more kisses, he's come to the right place. She'll drop another kiss on his forehead while his head is lifted up to her. "Yes." Then she nuzzles her nose into his hair. "I am a simple woman with simple tastes."