[ The request worries him, and he looks at Hades, uncertain of how to proceed ]

I'm not sure how good an idea that is, darling.

[ time to take advantage of his daze to slide in another pet name. But he does keep petting him, keeping him close, gentle and affectionate ]

Even taking aside the fact I've already drained enough of your blood, it's temporary. It isn't too different from this aging up potion.