A/N: Not really sure if this is up to par, since I'm not a huge Gil/Alice fan, but I tried my best to satisfy the request. And this is very short, since I didn't want to use other Gil/Alice fics for reference because I wanted to try to be original (Yeah look how well that turned out).
He liked watching her dance. With a smile on her face, dressing fanning out ever so slightly as she twirled and spun around with his master, he liked how she would giggle like a little girl and not like the fearsome chain from the Abyss that she was.
Gil knew of how his master – Oz Vessalius – felt about the girl that had been killed all those years ago (though by his hand or Vincent's, he knew not). So he wouldn't dare actively approach, nor compete for her. Besides, he wasn't a needy being. He was content to just watch from afar (and pretend to fight with her) while protecting his master.
But even he had his limits.
So when Alice's dance with Oz finished, and she had that damn happy look on her face, he allowed himself just once indulgence (because he really wanted to show her how much of a better dancer he was) to make her happy, even if she would be perplexed that he didn't try to pick a fight.
"May I have this dance?"