Major problems binding IP, in Kali's `Social Engineering Toolkit`

So, I'm attempting to set up a virtual network, one VM for Kali Linux, and one VM for Windows 7. The Kali VM is used for penetration testing, hacking, etc, all on the windows VM. I am using Oracle's VirtualBox Virtual Machine application. This is the order I am taking in order to remote control the Windows VM:

1. Open setoolkit


2. Social-Engineering Attacks


3. Create a Payload and Listener


4. Enter the IP (10.0.3.15 the IP that shows up when doing ipconfig in windows)


5. Windows Reverse_TCP Meterpreter


6. Backdoor Exectuable


7. Default Port


8. Begin listener (yes)


9. MFC Starts

I received no error, I was happy. Then when I transfered the payloader.exe to the windows VM, and ran it, nothing happened. I checked the Kali IP (ifconfig) to find out that it was the same IP - 10.0.3.15. So I ended up with 2 VMs on the same IP.

When I tried to change the IP on the windows system, I was getting the error Handler failed to bind to (IP).

This is the network setup in my VirtualBox: