Riku didn't mind Sora's fingers in his hair. There was a concreteness about it... Riku might have started this, but SORA'S hand in his hair said that Sora wasn't about to let it end just yet.
Sora didn't just sit there and wait to be kissed. He was playful. He was demanding. He was a little rough. And that was just kind of wonderful.
He did pull away a little though when Sora paused when he touched him. Riku just, just hadn't been thinking. "Too much?" he whispered.