Oh. Oh he wants more of that desperately. He's always loved pleasing his partners, whatever role that's required him to take or act he's required to perform. He has his own preferences, of course, but almost none of them get him to a fever pitch so fast as this, seeing someone arch in a pleasure he's created, voice their enjoyment at his touch.

Every soft noise Thanatos makes gets a low, answering one, hungry, and then eventually one of his own, aching and content both when Gustavain gives in and actually slides deeper into his mouth, still keeping the kiss warm and slow despite feeling like he's going to shake out of his bones with it.

There has always been something resonant about Phillip the few times where Gustavain has convinced him to channel his Ascian/Ancient self more fully. He's always thought some of that was caught up in the darkness, the weird opposing forces they act under. More recently, he's thought that it had something to do with him being a shard of Azem, a forgotten memory etched into his spirit, calling out for him. Maybe that's still it, certainly he actually still presumes that's it, and the reason it's so strong is because this is a Thanatos at the height of his power, of course his own soul would recognize that more strongly... but if he had known what Thanatos had been channeling was dynamis...