Fox slipped an arm around him, then sighed.
"I suppose," he agreed quietly, though it was clear Fox was uncomfortable with the idea of it coming up at all. As though he was afraid of spoiling something.
Other options:
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Fox slipped an arm around him, then sighed.
"I suppose," he agreed quietly, though it was clear Fox was uncomfortable with the idea of it coming up at all. As though he was afraid of spoiling something.