Is art imitating life for Kat Dennings and Nick Zano? At one point, Dennings even rested her head on Zano's shoulder. Less than two months after Zano, 33, split with girlfriend of three years Haylie Duff, the actor began romancing costar Dennings, 25, two sources tell Us Weekly. PHOTOS: Stars who found love on set "Kat and Nick are getting to know each other right now," a source explains of the couple, who play love interests on the CBS comedy .

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Nick and Leah first made their red carpet debut as a couple in late January.

Leah teased the big news last month on Twitter before it was confirmed, writing, “I am VERY pregnant, by a pool, in Vegas.” Nick and Leah have kept their relationship low key, last stepping out together for the DEN Meditation Studio grand opening in Los Angeles late in January.

Chemistry: Kelly, pictured with fellow co-star Elisha Cuthbert at the NBC Universal Winter TCA Red Carpet, believes it works in her favour, however, since there is 'pent-up sexual tension' with Nick on-screen The curvy model has been working hard to achieve her big break in Hollywood, but suffered a blow when critics initially called the sitcom 'obvious, dumb and unfunny', branding Kelly 'calamitous' and 'unconvincing.' We don't know if it's her deep tan and tumbling chestnut locks or that gorgeous sky blue dress, but Kelly Brook has never looked better!

Missguided has a gorge lace halterneck offering and Nasty Gal ribbed sweater dress is the new number-one item on our wish list.

actor and his girlfriend, actress Leah Renee, are expecting their first child together, Renee's rep exclusively confirms to ET.

PHOTOS: Hollywood's Hottest Baby Bumps Through the Years So far, the two have been low-key about their relationship, although Renee, 30, has confirmed she's pregnant on social media.

The brunette beauty opted out of her usual style, donning a stunning jacquard skater dress which she accessorized with white pointed courts.

We love the knit texture of this dress, plus the flare cut nips Kelly in beautifully at the waist to accentuate her hourglass silhouette.