Okay, El, relax. This is a common problem, and there's a way out. What you should do is (a) steal the OC's back from those two people, (b) put a word of your own in front of the names, (c) add your own pieces of jewelry and call them yours, and (d) make sure all those things have something to do with the fan fic you're rping in.
Once you've done all that, go to your preferences and access "Close a Wiki Site", tick the "So People Can't Edit It" box, and you're done. Good luck.