"Who me? Never" replied Xigbar, with an intentionally fake tone to it. Indeed he was curious to how Fluffy acts during the full moon. He wanted to witness it for his own amusement - Fluffy with a bushy tail and wolf ears - figuratively speaking anyway. Couldn't blame him, really. There was nothing to do on this ship except for staring at water. Heeey, maybe he could just shoot try to shoot Saix with tranquilisers during a full moon - that would make fun target practice.
Humour aside, Xigbar did feel a certain amount of respect for Saix. The guy was more level headed than he was (usually anyway) and he wasn't wild like Axel or as awfully timid as the other ones. That and Saix was essentially second in command. "Hey, want me to take on some of this?" he asked.
The Freeshooter froze for a moment, when it was revealed to him that Xemnas was also on the ship. "Is he now? Well, isn't that a surprise". This changed a lot of things. Yes, indeed Xigbar had his own plans, but he wasn't going to excetute them yet - at least not now. He needed to find out more about Xemnas, that's for sure. Specifically, things that he wasn't supposed to know.
Xigbar turned to Saix... "You know which room Xemnas is in, right? Tell me and I'll give you the VIP tickets to tonight's Bunny Bunny dance show. Or do you prefer to have Demyx dance in front of you? " said Xigbar with a grin. You know, he could just teleport to the suites above, but he wanted to see what made Fluffy tick. Call it personal entertainment.