Hythlodaeus watches Hades's reaction in turn - the pause was long enough to be somewhat suspicious, after all. But while he can tell there may be more to it than just Hades's words, it doesn't seem that his friend is averse to the thought - perhaps simply shy, as he can be in some matters (even if it is often erratic). And so the answer Hythlodaeus offers is both a reassurance and a tease.

"Quite easily, if you've no desire for such... kinks, did you call it? But 'twould indeed be enjoyable to have you at my mercy."