Parallels created 2 identical virtual machines?

I recently downloaded and installed Parallels 6 on my Mac and then installed Windows 7 in OS X using my Boot Camp partition. After this Parallels created 2 identical virtual machines, one called My Boot Camp and one Called Windows 7, which appear to be exactly the same. Also whatever I do in either of these virtual machines seems to be reflected when I boot Windows natively by holding the option key down upon startup. I am wondering why Parallels created 2 virtual machines? Did it mean to or does it seem to be some kind of bug? Or should/can I just delete/remove one of the virtual machines?