After styling a sexy little black dress that showed off her massive cleavage on The Tonight Show with Jay Leno on Monday, Berry, 46, took O'Brien's stage wearing a low-cut black blouse with see-through lace sides.
"My God! I know you get this all the time. You are stunning. Just stunning," O'Brien said, adding that the actress hasn't changed "at all" in the past 10 years. "You are a vampire," he joked. "It's unbelievable."
Berry gave O'Brien another shock during her interview while discussing her unisex fragrance, Closer. The host decided to test the fragrance for himself, but didn't spray it correctly.
"You don't put perfume on the palm of your hand!" Berry scolded O'Brien.
"Where do you put it? Do you dab a little? I don't know what to do!" he said. "Feel free to touch me anywhere that you want."
"Okay, take your pants off," Berry joked back.
But actually, the actress, who has released a total of five perfumes over the years, was only half-joking. "The way you're supposed to wear fragrance, you're supposed to spray it in between your thighs," she said. "Then it heats up and the aroma rises up all day long. And when you hug somebody you don't leave your sent on them. That's true. That's how you're supposed to wear it."
The revelation made O'Brien's jaw drop. "Oh my God, I've never heard that before. I just time traveled while you were saying that . . . " he said. "My God. That was fantastic."