Bubbles?

While riding home from grammy's today, I gave the kids a few leftovers grapes to munch on from my lunch. Aidan kept saying, "Bubbles!" and Reese and I assumed he was talking about my shirt, which featured large blue circles. When we got home I got out some more grapes as Reese did not share very well with Aidan. I had already changed clothes and Aidan reached across the table where I had the grapes sitting and said, "Bubbles!"