[ Sebastian nods with a troubled expression as Matt describes some of the more colorful foods humans like to indulge in, and it's clear that he's at least familiar with some of those offerings... Though it may just as much be for his own kind's offerings as well, since even if Sebastian finds them more palatable, he also considers himself a gourmand. It's why he goes through the trouble of covenants at all, since even if his stomach could be filled with "normal" offerings for demons, it was never the same.

It's why the question makes him smile. ]

...Normally, that is a rather difficult question to answer, because my answer always felt imprecise. In short, it is the darker feelings people are prone to. Hatred, despair, fury... All a bit stereotypical, I know, but such is my taste. [ He can at least make fun of himself a little bit in this regard ] But even so, that never feels like it captures the depth of what I experience. It feels a bit dull compared to what I experience to describe them so simply, but I had never been able to think of something more vivid.

[ "Until now" is clear enough in how he's phrased it, and so he shrugs very lightly. ]

What comes forth when one experiences the Kenoma... That is it.