Severus + Al
Naturally Severus was present at the Christening; the fact that he was Draco's Godfather made his attendance mandatory. And of course Al had been right there with him; the two of them were as inseparable as they'd been at every other public event either had attended. Both were in impeccable dress robes: Severus' inevitable black a rich moire satin with silver at throat and cuffs, Al's a subdued navy with cobalt trim that echoed the blue feathers in the specialised quill hovering nearby.
When the Christening ceremony itself was over, Severus scooped up two glasses of elf-made wine and handed one to Al. They found a spot by one wall, at the fringe of the gathering, and from that vantage point, Severus pretended to sip at his glass, and over its rim he resumed his longtime hobby of peoplewatching.