Laura Prepon Talks 'Private' Engagement to Ben Foster

The actress chatted with her old friend Ashton Kutcher on "Live."

"I am so pissed at you," he joked. "This is unacceptable."

Prepon explained why the couple kept their engagement a secret.

“If anyone understands the private lives, you get it.” she said.

He also brought up how long the two have known each other, going back to the 90s when the show started. In the end, the two hugged and Prepon kidded Kutcher about how "giddy" he was for her happiness.

A source confirmed the engagement of Prepon and Foster to ABC News earlier this week after she stepped out wearing a ring on "that" finger at a movie premiere.