Sora had a hunch that it was nearly always that Riku was thinking about kissing him, if he thought about it as much as Sora thought about kissing Riku that is. Anyway, he didn't need to read minds. Riku tended to look at him a certain way, and Sora had learned it already. However, he was still working on learning the signals for 'Want much more than kisses'.
Riku tasted vaguely of doughnuts, but they were delicious so Sora could hardly complain. It was cold standing there by the water and Riku's kisses were warm and so were his arms around Sora. Fetishes aside, Sora wasn't partial to making out in public though, so he left it at a few very satisfying kisses and buried his face in Riku's neck to warm up his nose, and mumbled something incoherent.