Konstantin's eyes follow the being's gaze as he looks down at his own legs, taking in the appearance. Truly, Konstantin's never seen anything like this (...apart from those nightmarish visions of the Darkwalker in this place), and it's still a bit jarring to see him all wrapped around Arthur like that, but. Well.

Konstantin has an alien from outer space living in his body, and his housemate is an undead(?) man who might possibly not be fully human, himself? He has no idea what Vasiliy's deal really is or how to make sense of it. There's a lot of weirdness in his life. This might as well happen!

"I see. Well, this place has changed a lot of us, so you aren't alone there." He offers a faint smile. "It's good to finally meet you. Arthur's told me much about you." A nod to their mutual friend, who really is looking more content than Konstantin's ever seen the poor man ever be. He seems almost satiated, like he's melting into something comfortable.