Well then, HP, by all means get up there and do it. Instead of thinking that he's just storing up some eye candy, why not just think that he's trying to give you some pleasure? Maybe he's trying to prolong the session, too, since maybe he knows that you enjoy longer sessions than him, and that, as soon as he's done...well, he's done.
Just a question...have you ever tried it on top, but facing his feet instead of his head? Jeeze, if my W ever tried this, I would love it. Sigh.