I'm seeing several girls, who don't know about each. If they found out I would likely lose them. My company's holiday party is this Saturday. I'm going with girl A. Girl B's cousin works at the same company and will likely be there. The only time we met was when girl B introduced us half a a year ago. Not sure if he'd recognize my face (he might've seen it more recently on her FB page.)

How should I prevent or handle a run-in at the party, where the cousin sees me with girl A and tries to call me out in front of her (and-or tells girl B later)? Any credible reasons I can give girl A to not go, or go briefly? How should I talk and act if there is a confrontation?

So both these girls think you are in a committed relationship with them?

Also, simple answer - just don't take either. Honestly I would never want to bring my GF to those things anyway...