Get her back.
Bust her once again or if there isn't anything to bust, just fabricate the evidence (like you probably did on this one).
Make her eat some paper again and take a pic/vid.
was this a nice, glossy, portrait pic, or did she just print it from your facebook?
were other devices (besides the headphones) involved--maybe Jerry Springer playing on the tube, or something randy on the PC, or...portable, personal appliances?
I assume this girl has no guy friends and certainly no brothers. If anything like this happened to my sister then the OP would be in the hospital for about a year.