"Oh god," Moore said the moment Stern dropped Valderrama's name, seemingly knowing what was coming next.
"He said, 'I took--'" Stern began.
"That he took my virginity," Moore interjected.
"He took your virginity," Stern finished.
"He did not. I dated him when I was 16 and 17 -- No!" Moore insisted. "I love him and I still love him and he's a very good friend. And that's why I was so shocked by it because not only was it a fib, but it was so unlike him, it was so uncharacteristic."
Nevertheless, she said they're still friends and he's "a good guy."
"I think he learned a valuable lesson that day," she told Stern, laughing.
And speaking of connections, Moore dropped some fresh details about how she scored the role of Rebecca Pearson on This Is Us. She recalled it coming down to three women and three men auditioning for the final spot in a "chemistry read." She just so happened to be paired up with eventual co-star Milo Ventimiglia -- after her expected partner, Oliver Hudson, decided to skip out on the audition to go fishing.
She said while these kinds of auditions can be extremely awkward, this one wasn't.
"You don't know the person, you shake hands and you're like, 'Hi, you're going to be my husband now. Nuzzle into my neck and let's pretend to be in love and about to be birthing three children,'" Moore said. "Him and I? It was instant, it was easy, it was effortless."