'Stranger Things' Stars Millie Bobby Brown & Caleb McLaughlin Dish On How Their Friendships Have Changed On Set

When Millie Bobby Brown and Caleb McLaughlin first met, their relationship was very different than what it’s like now.

The two Stranger Things stars chatted with ET at the 2018 PaleyFest over the weekend about their evolving relationships, and both shared it was like friends turning into family.

“Once we first met each other I think we were all very outgoing. So it was just easy to connect,” Caleb shared. “It wasn’t actually hard.”

Millie added, “It was like a relationship actually, because it felt like we went through a honeymoon stage. We would be, like, really nice to each other. We didn’t want to do anything that would hurt each other’s feelings.”

However, now it’s different: “We are actually siblings. We argue all the time,” Millie shared.

“I wouldn’t say all the time,” Caleb added.

According to the two, the “arguments” are about little things like who took the other’s bag of chips.

“It’s little remote control arguments,” Caleb says.

Stranger Things season 3 will start production next month.