ideas????

so I put a selfie of myself on fb using my mum's iPhone to take the تصویر infront of a mirror (so u can see the iPhone in the picture) and my friend شدہ تبصرہ saying

'how come when eva u take a تصویر of ur self its always on ur mums iphone??? :)'

she has کہا it before and it's meant to دکھائیں people that it's not my phone, i don't know why she does it so can آپ just please help me with a good comeback that's not rude یا mean?