Last month, the two were snapped on a date at Pinz Bowling Center in Studio City, California. Facinelli and Harrison shared a few kisses outside, as the actor smoked a cigarette.
The couple also recently vacationed together in Cabo San Lucas, Mexico, although they avoided sharing social media pics of one another. Still, the two did post pics and video from their enviable getaway last week.
On Tuesday, they both shared video of themselves back in Los Angeles, where they had fun hitting some baseballs at Sherman Oaks Castle Park.
And clearly, Harrison -- the daughter of TV actor Gregory Harrison -- is a fan of Facinelli’s movies. The beautiful blonde lists Twilight, New Moon and Eclipse underneath her movie "likes" on her Facebook page. Harrison's own acting credits include bit parts on One Tree Hill, The Craft Store, and Two Guys One Truck.
This marks Facinelli's first relationship since splitting from 32-year-old Alexander after more than three years of dating. The two blamed their breakup on "conflicting family and work commitments on opposite coasts" in a joint statement in February.
The Can’t Hardly Wait star was also previously married to Beverly Hills, 90210 actress Jennie Garth for 11 years before he filed for divorce in March 2012. The two have three daughters together, Luca Bella, Lola Ray, and Fiona Eve.
"She'll always be in my life, I'll always love her," Facinelli told Kelly Ripa about his relationship with Garth during his Live! co-hosting gig in April 2012. "We're very dedicated to being great parents."