Poor Tsuna! Gokudera reached up and gently put his fingers through Tsuna's hair, trying to calm him down. "Don't say stuff like that," he warned Sora. Tsuna was WAY to young to have a heart attack, and Sora shouldn't jinx him like that.
"Everything's fine," Riku tried to help, and gave Sora's shoulder a nudge. "Where do you want to go for dessert after the dance?" They HAD to go somewhere for dessert after the dance. That's just how it worked. Tsuna and Gokuder MIGHT be allowed to come along, if they behaved.
Ohh, drinks! And bread! "Try it," Riku said, passing his drink over to Sora, and handed Gokudera a bread stick. "Wave it under his nose," he said of Tsuna, ignoring his brother's glare.