-What is Sora calling Kairi "Someone special to him"?
-What is the part where he's reminded of Kairi when he sees Will and Elizabeth together in the Pirate of the Caribbean world?
-What is the scene in Halloween Town when he imagines he and Kairi dancing?
-What is Sora on his knees begging Saix to let Kairi go?
-What is the whole scene where Roxas and Namine re-enter Sora and Kairi's bodies?
-What is the factor that Namine is kinda Sora and Kairi's daughter what with when Sora frees Kairi's heart in 1? (Roxas may also count, but he's more of the offspring three-way between Sora, Kairi, and Ventus.)
-What are the cave scenes? Especially in KH2's credits where Sora notices the cave drawings?
-What is Aqua granting young Kairi that if she's ever in danger, she'll find her way to someone to protect her?
-What is Kairi handing Sora her good luck charm in Birth By Sleep's secret ending?
At the very least, Sora wants to marry and fuck Kairi while Riku lives with them.