It's post-jegulus dark mark break up, and Regulus starts transforming into his cat animagus almost nightly to escape the nightmare that is both his dreams and life.
One day he falls asleep in his wander around the halls and wakes up to find himself curled up next to a fire in James's lap. His immediate instinct is to leave. He doesn't deserve the affection. But the warmth warmed his bones in a way he hadn't been able to be since they broke up, and the cat mind had always been more selfish in it's deeds....
So he stays and just soaks in the warmth and affection he knows he doesn't deserve and will never have again, savouring every single moment.
Unkownst to Regulus, James knew it was him.













