Britney Spears makes first official public outing with boyfriend Sam Asghari

Britney Spears recently made her first official public outing with boyfriend Sam Asghari.

The "Make Me..." singer stepped out on Thursday for the Sir Stello fashion show at the Beverly Hilton hotel to support Asghari's sister, Fay, who was walking in her first-ever runway show. The show was part of Los Angeles Fashion Week.

SEE ALSO: Emily Ratajkowski lounges completely nude on Instagram

The adorable couple, who met on the set of Spears' "Slumber Party" music video last year, appeared to be having the time of their lives and were all smiles as they proudly watched the show.

See photos of them together at Los Angeles Fashion Week:

Spears, 35, showed off her toned legs in a little black dress with long lace sleeves and a major cutout above her cleavage. Her long blonde hair was swept to one side, and she finished the look off with simple black pumps. Asghari, 23, looked trendy in white jeans, black high-top sneakers and a patterned navy button-up shirt.

The outing comes a little over a week after the pop legend took to her buzzed-about Instagram account to wish Asghari a happy birthday on March 3. In the post, Spears shared an adorable photo of herself posing with Asghari during a couples hike, a photo of his birthday cake and a silly Snapchat selfie with her man.

"My baby's birthday," she captioned the Instagram slideshow.

Asghari and Spears have been enjoying each other's company since filming the music video, which co-starred singer Tinashe, back in November. Asghari plays Spears' hunky love interest in the playful clip, which sees her crawl towards him on a table before licking up (literally) spilled milk on the table in front of him.

Since then the pair has shared a handful of cute snaps together on Instagram and have been spotted on dinner dates on more than one occasion.

See more of Britney Spears' memorable Instagrams below:

More from AOL.com:
Kim Kardashian West breaks silence on Paris robbery in E! reality show
'Sesame Street' introduces Julia, their first-ever character with autism
A former 'Real Housewives of New Jersey' star is reportedly the center of a possible double murder investigation