"It was your birthday," Al whispered. "Thirty-ninth.
Logically, statistically, or even optimistically, I knew I had about as much chance with you as I did with conquering heights. Then you offered your hand and asked to trust you."
His lips against Severus' skin, with a mix his own warm breath and taste of Severus on his tongue, Al kept on talking. "That's when I realised just how... irrational I was when it came to you.
Logically, it should have worried me more than it did. But irrationality of the situation wasn't important, because there were so many better things to focus on at that moment than worrying about logical aspects of an axiom."
Al smiled. "I took your hand instead and you took me flying. You were brilliant."