intersect object with at least 2 other objests

Does anybody know if it is possible to create an object that will locate itself intersecting at least 2 other objects.

In the attatched image i have two spheres already created. I would like to create another sphere that intersects with both of them. The idea is that i would like to say there will be x number of spheres, each sphere will intersect with at least 2 others and its volume will depend on the volume of the spheres it intersects with.

If anyone knows how to intersect with at least 2 onjects first would be great. If you have any other ideas for how i could go about the rest of my plan that would be great!

Cheers!!