Brody Jenner recently commented on her step-sister Kendall Jenner dating Harry Styles, saying the One Direction singer should beware of getting his heart broken.

"I hate to tell you this, but Kendall will be doing the heartbreaking," he told New York Daily News about his 18-year-old sister. "I'm sure she's having a fun time with him. She has a very level head, great head on her shoulders. But they are both so young."

"She is at that age where dating is a lot of fun," he added.

The couple have been spotted jetting to see each other in Los Angeles, New York and most recently London. Brody has never met Kendall's new British boyfriend, but said he approves of the relationship. He also made it sound like their father, Bruce Jenner, already likes the 19-year-old singer.

"It sounds like a match made in heaven," Brody said. "That's what it sounds like, but I've never met him...My dad told me that Harry Styles plays golf, so that's cool."

The former Hills star has been in very public relationships himself. Brody dated Lauren Conrad and Kristen Cavallari on the MTV reality show. The 30-year-old also had a highly-publicized romance with singer Avril Lavigne, which resulted in them getting each other's names tattooed on their bodies.  

Brody is currently single after ending a four-month relationship with model Bryana Holly in November. He hosts an early New Year's bash at Ghostbar at the Palms Resort in Las Vegas on Dec. 29.