Haha! Yes, Hakkai would wait it out for later the benefits. I like all those fics that have Sanzo as a selfish, lazy lover who makes his partners do all the work - it seems very him, somehow.

My point about Sanzo not being sensual was probably not made very clearly - I didn't mean that he didn't have a libido, but he just didn't take very much notice of it. But anyway, I woke up just now and realised that my two different views of Sanzo aren't actually different views at all, just different gradients of the same idea.