My friend and I both have Verizon as a carrier. She has tried to send me numerous picture texts and can't. However, she can send pictures to everyone else with no issues. I can also get pictures from others with no issues. It seems really odd. I can send her pictures with no issues. We both rebooted and are using the most up-to-date versions of the software. She deleted my contact info and re-entered me and still having the issue. Any ideas or suggestions?
Hmm. That is odd, tricket! Lets figure it out. Can your friend send you messages while on WiFi only or on 3G only? Do you have the iOS7 update? Try to reset the network settings. Here is how: Settings > General > Reset > Reset Network settings.