Xion had noticed that sometimes, shared experience was needed to jump start memories she'd received from Sora. Worlds he'd visited had always seemed familiar. So maybe she and Roxas needed this lesson to help them "remember" how to swim, as it were. Whatever the case, she too appreciated the effort Sora was making. Once she felt a little more confident in her ability, she'd have to come back on her own to see how she liked it.

Once Namine had returned Riku's smile, nodded, and finally joined them, they could go on to the next step. After making sure she wouldn't accidentally kick anyone, she tried kicking while holding onto the pool wall. Staying afloat this way was actually a little easier.