The first thing he did was ridiculous. He was aware it was ridiculous. But like a great many things Alastor did, being ridiculous didn't deter him. If anything, it seemed to encourage him, most days.
He pulled the candle from the top and stuck the icing covered end into the corner of his mouth, fangs holding it in place. The ears gave way his surprise at the taste before the raise of his brows did. Heavens, it was so sweet. He didn't hate sweets, but he'd also never acquired a taste for them, and therefore didn't really indulge them often.
When Lucifer didn't initially speak, Alastor let the silence settle back in around them. He looked out over the city for only a moment before his eyes were eventually drawn back up towards the heavens again. Silence was nearly antithetical to him, as was stillness, and yet there he was indulging both. With Lucifer sitting beside him, no less. Someone who, a few short months ago, had inspired a rage in him he hadn't felt in nearly a century. By the time Lucifer spoke, his thoughts had almost pulled him back down into the static. One ear twitched, angling towards his companion, before he turned his head to look over. The candle—apparently forgotten—was still stuck in the corner of his mouth.
Alastor raised a brow. Then a snort escaped him, followed by a giggle. Not the manic, adrenaline fueled little thing that escaped him before he'd slaughtered half a dozen sinners, but something softer. Something that might've been genuine. All the more so when the laugh deepened and he curled a little like he was trying to suppress it, leaning forward precariously. Even his shadow seemed concerned that he might go right over the edge. Not because either of them could see it's expression, stretched out behind them as it was, but because thready tendrils of darkness curled over his shoulder to pull Alastor back slightly.
It shouldn't have been that funny. Even Alastor knew that. But the comment had hit something, apparently. Some old, dusty memory he hadn't thought of in a long time.
Alastor braced his heel on the side of the building, straightening up. A hand came up to wave the shadow off, of which it did, but not before reaching forward to snatch the candle where he still gripped it between his fangs. That had Alastor looking back with narrowed eyes, his expression somehow petulant. A huff escaped him, but his expression settled into an easy smile as he looked to Lucifer again.
"Mm..." that tinny hum again as he did the math mentally, eyes glancing away in thought. He didn't have to supply the exact answer often, and in reality, he often tried not to keep track of it, anyway. "A hundred and twenty-nine," he said after a beat, eyes returning to the devil, and then his lips spread into a grin. "But I suppose a few hundred years isn't that far off for you."
Like Lucifer, there was none of the usual aggression that so often undercut their banter. But it was also a jab thrown back in return as Alastor pulled a piece off the cupcake and popped it into his mouth. It was restrained, the way he ate, half because he couldn't take all of the sweetness at once, half because he felt somehow awkward eating in front of someone who didn't also have something to eat. But then, that same feeling arose at the thought of splitting it in half and offering part of it back to Lucifer. Would that be rude? he considered idly as he chewed the bite. It felt like it would be terribly rude, which he didn't mind being. Usually. But it was something he tried to rein in when he appreciated the gesture. In this case, to his own surprise, he found he did.