[He lets out a murmur of pleasure and tilts his head, exposing his whole long, pale neck to Kisame's mouth. He knows full well what that mouth full of teeth could do, but they were just talking about trust, weren't they? So Kaworu shows his trust, baring one of the weakest points in his Lilim-shaped body.
A close bond, he can handle. Allegiance, he can handle. But it's just a simple fact of his kind that he can only love the person who earned that emotion by accident, so no one will ever have his heart but Shinji. Shinji, whom he'll probably never see again with NERV and SEELE having deserted him. It's laughable, but there it is.]