As a losing plaintiff in a group action, what if I pay defendants fees but others in my group do not?

I'm part of a group of plaintiffs who recently lost at arbitration. We accepted the ruling and the decision was entered as final. The defendant is now demanding we pay their attorneys fees. I'm prepared to pay if I have to, but I'm more worried about the other plaintiffs. They may refuse or be unable to pay. Since I'm part of a group, if the other people do not cooperate in paying the fees, would the record show that I haven't satisfied the judgment? Would my credit be affected? What else should be considered if I pay but they don't?