Building a multisite from subdirectory, but sites off of root

Lets say I've installed multisite in a subdirectory. How can I have the new sites created from multisite within the same level directory.

For example:
Main
http://site.com/multisite

(correct)and then the sites created should look as follows:
http://site.com/site1
http://site.com/site2
http://site.com/site3

(wrong) Right now it is doing:
http://site.com/multisite/site1
http://site.com/multisite/site2
http://site.com/multisite/site3

Is there any way to do this? Please be specific. I've gone through thousands of threads and no one has really addressed this specifically. I do not want to move multisite to root level.

Thank you!