Barty knew, rationally, that he should hurry to stabilise him, check his vitals, keep him warm. A thousand different things that should come right now. But he pushed back on that and instead here he was, his arms around Regulus and his lips on his. Kissing him, the way he last had years and years ago, in what seemed lifetimes ago.

Still kissing, he also sunk to the ground, helping Regulus lie down and, ever so helpfully, laying down on top of him. There, that was one way to keep him warm. Finally he pulled back from the kiss, his fingers running through Regulus' hair. It felt just the same, silky and soft, begging to be petted, begging to be pulled. Depending on the mood. "Welcome back, Regulus."