Just days after news broke that Stalker co-stars Dylan McDermott and Maggie Q were engaged, the couple has been spotted out together in Los Angeles.

Dylan McDermott & Maggie Q Make Their Red Carpet Debut!

The newly engaged co-stars were spotted hiking in Santa Monica, Calif. on Jan. 18, alongside McDermott's 9-year-old daughter, Charlotte . Q, 35, clasped her soon-to-be stepdaughter's hand as they navigated a steep hill, and showed off her muscular body in a black crop top and booty shorts, while her husband-to-be kept things more casual in a black t-shirt and gray sweatpants.

News broke over the weekend that the couple and co-stars were engaged after a whirlwind romance, and have actually been engaged for months, though Q only started wearing a ring until McDermott recently gifted her with one while on a trip to Hawaii.

The two were confirmed to be dating back in October, after they were spotted having a romantic night at Santa Barbara's Olio e Limone.

"They were very flirty, smiling at each other, canoodling," a source said at the time. "At one point she was feeding him at the table."

The couple has never publicly commented on their romance, though they did make a first public appearance as a couple earlier in January, when they attended the In Style Golden Globes after party on Jan. 11.

Prior to their romance, McDermott was married to actress Shiva Rose for 14 years until they split in 2009. In addition to Charlotte, he also shares another daughter, 18-year-old Colette with his ex-wife. Q, 35, has never been married.