Add Loader as a Child to more the one MovieClips

I would like to use the addChild method of more then one MovieClips with the same parameter, eg add the same loader to two or more MovieClips.

var loader:Loader = new Loader();
loader.load(new URLRequest("http://www.actionscript.org/forums/images/misc/navbits_start.gif"));

var mc1:MovieClip = new MovieClip;
mc1.addChild(loader);
mc1.x = mc1.y = 0;
addChild(mc1);

var mc2:MovieClip = new MovieClip;
mc2.addChild(loader);
mc2.x = mc2.y = 100;
addChild(mc2);

But the loader is add only to the last MovieClip.
Can you give me advice how to solve this problem because it’s quite inefficient don’t want to load the same to different loaders.