Transfer music from one iphone 5 to the other?

I have an iphone 5, so does my boyfriend. But he had more music on his. So I used his apple id and transferred the music from his to mine. Just over iTunes on my phone not using a computer.& I just wanted to make sure the music would still be on his phone also? Or since I transferred it did it take it off his

Hi
you need a laptop or pc
download this program(you need to heve itunes installed)
http://itools.hk/en_index.htm
install it connect your iphone.copy the music in pc and after that connect the other iphone and copy the music in! Simple!
cheers!

You are trying to pirate music so obviously you are going to have to illegally try to get around it.

I know a program can connect two devices at the same time and then transfer file from one device to another.
Detail information, please refer below link with screenshot and description.

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