a neat thing my g/f tried one time was this:
she lied between my legs (with me on my back) and then reached her arm up to my mouth... i was supposed to take her finger in my mouth and do to it what i wanted her to do to my dick... it was really cool, but i couldn't concentrate for very long on her finger........

this might be a neat way for your b/f to give you some pointers about what he wants...