that's strange - there's nothing in her outbox of text messages at all?

That's weird. Most people would say that maybe your sister was just playing some tricks on you but since you said she wasn't the I guess not. I haven't heard of situations like this before

Ok, this is just bugging me a bit. I got a text message yesterday morning from my sister saying "meet me at the park." I had no clue about this and called her to ask what she meant. She said she never sent any text to me. Later that day I got a 2nd text saying the same thing, again from my sister. Again she said she never made it. Before anyone says this, no it was not a joke on her part. We called metro pcs and they confirmed the text were sent from her phone. Anyone have a clue what is going on here? Has anyone heard or seen anything like this?