[There are too many things at the tip of his tongue. He knew Soushi would respond in that way, but there's nothing that Kazuki can get out. "Is this really okay?", "Can we stay like this?" Not asking, maybe just out of fear that whatever it is, it'll break this comfortable silence. The way they are being something he could sink into and never want to crawl back out.]
What should we do after this?
[-is what he finds himself deciding on. There may be more than one way to answer, but he'll take what Soushi gives.]