Create SMS and MMS messages?

Hi. I'm trying to copy texts (SMS and MMS) from my girlfriend's iPhone, and have an app copy them to my phone from iTunes' backup files. I have reading the backup files mostly figured out, but I'm not sure how I'm going to go about adding them to my phone. How can I create SMS and MMS messages? (With correct timestamps, etc.)

I'm new to Android app development, but I am very experienced with Java. Any help is appreciated, thanks!