What did you just say?

We were trying to take our selfies but another couple took them then the gf took their's. Then another couple asked her to take theirs. Then two other couples came by(first one being a white elderly couple and the second two heavy set black ladies) and the gf says to the first couple, "these two professional ladies can show you how it's done" and walked back to me. We walked a bit down the boardwalk and I was laughing after I heard her say that. She was instantly mortified and ran back to apologize. They hadn't even noticed.