[Heavens, but she really is almost absurdly kind.]
Just a moment, then. [And he's gone - to the human eye it'd look like he literally disappears. Not much of a point in hiding his speed from her, really.
He does only take a few moments before he's back, now holding a blood pack in one hand.]
Well. I believe this will do? [He tasted it - it's neither human nor animal blood, and while he can't know if it's the right kind of vampire blood, well... he'll find out when Yuuki drinks it. Worst case scenario it kills her, he supposes.
Perhaps it would be safer to keep his distance and toss her the pack - at the very least it definitely would be kinder to her. But Sebastian is confident in his abilities to defend himself, and now he's curious about how far Yuuki's self control goes.
He walks up to her. Kneels next to her, presenting her the pack.]