journaling.. works amazingly.. you should have a journal as a sub so your Top can know where to push further and where to reign in certain things.. you write what you posted above, in a respectful tone as he is your Top. and include a brief set of questions..

do you like the idea of being restrained? rope is cheap and easy if you dont have fancier stuff..
tell him that tonight, he is going to make you cum first (in whatever is your most favorite way) and if he does a good job, there will be a reward commensurate with his eagerness and skill in pleasing you..
ask a few other things about what you guys do together..
this is kind of a last resort, but there are plenty of free femdom clips or movies out there.. watch some and ask if he would like ".." or ".." or ".." from the videos.. stuff you got aroused to see..

good luck.. its always great to hear back from individuals who ask for advice.. please write about how it went if you have the time..