Why did Remus have to go and look so... small? It hurt to consider that it might be a calculated maneuver to illicit pity or... Sirius didn't know. Distrusting Moony hurt more than anything else, and it was that, more than anything else, that drove the knowledge home: this was real. It was undeniably, impossibly real. He was really here, on this island. Remus had a son, married Dora. James was alive, somehow, in this place. This Delphine woman from the future was real, she'd plucked them out of time and dumped them on this island to deal with their issues. She was collecting them, just as James had said. It was real. It was all real. All because of this moment and the ache in Sirius's chest at his distrust of one of the best friends he'd ever had.
He shook his head, more wondering what Regulus was playing at than in disapproval of Remus's life choices. Was Regulus lulling them all into a false sense of security? Surely he wasn't doing this out of the goodness of his heart; he would have to know he was brewing this for a werewolf, and any Black worth his salt wasn't going to be well pleased at helping a 'creature'. As far as he could figure, Regulus's only possible motivation in helping was fear that he'd get bitten and the hope that, if Remus kept his mind the whole time, that threat would be diminished.
Sirius wasn't beyond scaring him as Padfoot just for the hell of it. Maybe he'd even get an infection.
He sighed and tried to dig the frustration out by scratching vigorously behind his ear before resting is forearms on his knees and staring at his sandwich some more. He was hungry, but the idea of eating it appealed to him about as much as eating cardboard, even knowing that the thing was delicious. His stomach twisted while something rose in his chest; he hoped it wasn't the sandwich.
"Tell me a story," he murmured after a time. It wasn't an altogether new request. There had been whole afternoons spent curled up on the couch in their flat, where Remus would read and Sirius would listen, drifting in and out of the story, buoyed by Remus voice. "Tell me... tell me the story... Tell me your story. What you did during the war. Where you went. What you did after."