Sora had a point... they were too alike. He and Sora, and Gokudera and Tsuna... they were both adjusting to the new level of their relationship, slowly testing comfort levels. "Well, not exactly alike," Riku changed his mind, "You're not terrified," he knew Sora wasn't. Sora would kiss him as soon as Riku said he could, "And I'm not cranky like he always is. And we've been friends forever." Unlike the other two who barely knew each other.
"Maybe we're not alike at all," Riku mused, his arm still around Sora. "Maybe we're just all in new relationships, that happen to be with another boy."