Severus took in Al's rather glazed expression and the hint of a blush, and his lip twitched in that way that said he was fighting back a grin. Or possibly a triumphant leer.
Then Lily's comment was the last straw, and he gave an honest-to-Merlin snort of amusement. "I'd pay a pretty penny to see that," he confided.
He sobered a moment later, adding to Lily, "It's unfortunate that you didn't have the chance to stand up with me after all. We just thought that now wasn't the time for any formal ceremony."