Something about the way she said it, that she laid claim on him as her brother, made the doubts begin to melt slowly away. Gendry's lips turned up a little.
"Yeah," he said. "I'm your brother." Which meant Myrcella was his sister, something he wasn't sure he could say just yet. He'd always been an only child and having any blood family at all was still wholly new to him. "Let your brother buy you lunch?"