AnnaLynne McCord, 23, Packs on PDA With Dominic Purcell, 41

 PacificCoastNews.com

AnnaLynne McCord's first week back on the set of 90210 has been extra special thanks to a recent L.A. set visit from new beau Dominic Purcell.

The 41-year-old Prison Break star visited the actress Tuesday as she filmed scenes with costars Shenae Grimes, Jessica Stroup, Trevor Donovan and Michael Steger. At one point, the 23-year-old actress jumped into Purcell's arms, giving him a passionate kiss as he groped her butt.

"In between takes she would go on a short walk with him or go to a private corner and make out with him for a bit," a source tells Us Weekly of the couple, who costar in 2012's Officer Down. "She seemed like she was beaming with excitement that he was visiting her."

Despite their 18-year age difference, Purcell certainly fits McCord's standards. "I look for a man, not a little boy," she told Us in June. "I like honesty and strength. I like confidence, and talent, and yeah, I'm really happy right now!"

PHOTOS: See more pictures of Annalynne and Dominic from PopSugar

Prior to his relationship with McCord, Purcell was married to Rebecca Williamson; they split in 2007.

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