At that, Nero couldn't help but smirk back. Didn't Cloud tell him that he was going to teach him to ride a bike, by the way? Well, he couldn't really put his mind set to learn anything right then, but he made a small mental note to remind Cloud about that little detail later.
"Don't worry," he climbed the bike, settling the sword comfortably so it wouldn't bother him or just... stab the seat, and grinning at the spiky-haired back of Cloud's head. "I won't tickle you either."