IIS Unicast/Multicast and Session state

Hi all, I have done much research and tested a few scenarios but no clear solution.
I have 2 VM's (Hyper-v) running IIS connecting to sql cluster (also vm's). I am trying to find the correct configuration to allow users to access my site and NLB managing the connections so that any user connects seamlessly and browsing arps come from the same IP (MAC) due to security requirements. My Unicast setup doesn't seem to function properly. I have read some docs about using hyper-v switch manager and adding the static MAC to both virtual adapters, etc. I cannot seem to get it to work properly. I didn't want to resort to any workarounds, including creating a session state server, etc. I think I am missing something....any ideas?