Mila Kunis Blushes, Giggles Over Ashton Kutcher Pictures on The Ellen DeGeneres Show

USMagazine, Wednesday, February 13, 2013, 7:15am (PST)

Mila Kunis is finally letting her guard down. The notoriously private star blushed when Ellen DeGeneres inquired about her boyfriend of nearly a year, Ashton Kutcher, during a Feb. 13 appearance on The Ellen DeGeneres Show.

"So Valentine's Day is coming up. It's tomorrow, I believe," the 55-year-old talk show host said. "Is that a big day for you?"

"Yes and no," the Oz the Great and Powerful star replied. "I've never really put much emphasis on it. I've been single through Valentine's Day. I've been in a relationship. Either way I'm fine with it."

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Feigning ignorance, DeGeneres said, "If you had someone -- I don't know if you do or not -- but if you had someone in your life to spend Valentine's Day with . . . What would an ideal Valentine's day date be?"

"I really don't know," Kunis shrugged. "The truth is I don't know. I think something simple, sweet, meaningful, is great. I love flowers. So flowers are nice. Chocolates. Who doesn't like chocolate?"

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When DeGeneres joked that her choices were "very stereotypical," the Ukrainian-born actress joked that she wants "the biggest bear and thousand roses. If we're going to do it, we might as well do it full out."

The Seriously . . . I'm Kidding author then continued to tease Kunis about her relationship with Kutcher, 35. "I don't know if there is anyone in your life or not, so I'm not going to push on that. I'm going to change the subject entirely," she said, just as images from That '70s Show appeared on the giant screen behind them. "I'm just wondering, do you keep in touch with the cast at all?"

Kunis, 29, burst into a fit of giggles and struggled to compose herself. "Yeah, we all keep in touch," she said while wiping away tears.

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"Anybody more than the others?" DeGeneres asked as a new picture of Kunis and Kutcher's characters appeared onscreen. "Oh, remember that? That's Ashton Kutcher."

Still unable to control her laughter, Kunis fidgeted with her hands before replying. "Yeah, I've worked with him."

"How is he doing, I wonder?" DeGeneres continued. "Do you talk to him at all? When's the last time you talked to him? I'm just asking. It's a showbiz question."

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After a considerable pause, the bashful star finally gave in. "It's been, give or take, a couple of minutes," said Kunis, who ended her eight-year relationship with Macaulay Culkin in 2010. Still tearing up from too much laughter, DeGeneres handed the brunette beauty a tissue and asked, "What's happening?"

"My eyes tear up when I get nervous," Kunis explained. DeGeneres pressed on, asking, "Is it just the thought of him? Are you very emotional?"

"You are such trouble!" Kunis exclaimed.

This article originally appeared on Usmagazine.com: Mila Kunis Blushes, Giggles Over Ashton Kutcher Pictures on The Ellen DeGeneres Show