Multiple bluetooth headphones

[FordPrfct]

I searched the site, and couldn't find a good answer to this. I would appreciate any help I can get.

A while back, I got an MP3 player, and my girlfriend was very much enjoying listening to it at the same time I was, leaving us together in a private world of music. Well, I recently got a Mogul, and have had a ball playing with it, but I had done some looking at accessories, and wondered:

Is it possible to have the sound (from, say, WMP / streaming music) playing on multiple bluetooth headphones at once? I think it would be a blast to have the two of us walking along, listening together, and not be worried about lines getting tangled. (Yes, I know it won't be cheap. Not so concerned about that part.)

And, if nobody knows, what are the odds that a pair of curious individuals on this board live close to one another, both have headsets, and are willing to give it a go?

Thanks for the help!

FordPrfct