He didn’t outright say it of course. He’d slapped James on the back and made a crude comment as expected but within 5 minutes he’d made some stupid excuse and disappeared behind the curtains of his bed. He’d been in a foul mood for days after, insisting he was fine whenever anyone asked with a look on his face that strongly discouraged any further questions. He’d come to Hogsmeade over the weekend with Remus and they’d seen James and Lily out. The afternoon had culminated in he and Remus grinding up against each other furiously round the back of the shrieking shack. The whole thing had lasted a few minutes before they’d both come in their pants and Sirius had hardly spoken to him the whole time. He certainly didn’t mention James, but Remus knew; he’d seen his face when he was watching James and Lily together and he just knew. Suddenly everything was horribly crystal clear.