Yea...its pretty much possible...!! Just get the MAC address of your mobiles...!!..Use a Wi-Fi Router configured with a WPA2/PSK encoded key to secure it...so that only your 2 android devices and the one which is enabling the router can use it...!!You might wanna get your router first..Put some screenshots..then it will be more simple...!!
Ahh...No... Not this screenshot...i meant the 3G router/its domain page...!!OK..you can also use it on ad-hoc network....!!Can your mobile create a ad-hoc network...??....Because you can use it in vice a versa pattern...!!I have a nokia C7....from which i can access my internet/share files/everything...!!But the security implies same to both...except for MAC address...!!Because to make it more secure...you have to use a WPA2/PSK encrypted key.....!!
I used Connectify Pro version to make my computer a hotspot.It successfully created a connection, but net on my computer stopped working.My phone also was able to discover the network and it connected successfully.I was not able to browse on phone or do anything though