Magnus rarely liked to admit it - but he didn't always know what to say or do. He wasn't infallible, and he'd tried for a very long time to not let himself feel the way Alec made him feel. It left him off kilter and more often than not he found himself going back over what he'd said later and second guessing every word. Which was absurd, but kept happening anyway.
In the moment though, it seemed easier, because there was that spark of something vital between him and Alec that had been there from the start, and was the reason Magnus had abandoned his own rules - or was beginning to, anyway. (The face and eyes and legs, admittedly, hadn't exactly hurt in the beginning, either. Magnus had always had a weakness for beautiful people.) In the moment, he could just try to say what he thought was right, and what Alec might need to hear - and wonder about it later.
He wasn't exactly startled by the kiss, but then he was, too. It always seemed to go like this with them. All or nothing - sudden bursts of mid-panic passion that ended in a kiss, then back to the drama of their lives with no chance to breathe. It hardly seemed fair. But Magnus wasn't about to turn it away when it was offered, especially not when Alec seemed to need it. He pressed back into the kiss, hand solid at the back of Alec's neck until it finally broke. "It will be all right. We can figure it out, Alec," he said, quiet and still almost against Alec's mouth. He paused and then added. "Presumably after we figure out why we're here."