Join his crew? Rukia was half-tempted to tell him no, thank you, it was very nice of him to ask, but it seemed like a pretty silly game and she didn't think it was best to get carried away with this whole pirate business.

Part of her was tempted to just accept. It did seem like fun.

In the end, the second part won out, though more because her mouth seemed to have a mind of its own than because of any conscious choice on Rukia's part: "Arrr, it just so happens I invented motley!" She didn't actually know what 'motley' meant. "Me lad, I'd be happy ter join your crew."