Sam and Britney first met when he starred in her video for “Slumber Party,” which was filmed at a mansion in Beverly Hills. In 2018, Sam told Men’s Health how he tried to charm the ultra-famous pop star.
“I was excited that I [would] get to meet one of the biggest artists of all time,” he said. “She said, ‘Hi, I’m Britney,’ and I said, ‘I’m sorry, what’s your name again? I tried to be funny. I don’t think anybody got it.”
The two continued to talk over the course of the shoot, and their connection was strong enough by the end that they agreed to exchange numbers so they could set up a proper first date.
“I found his number in my bag. I was like, ‘He is really cute. This guy is really cute,’” Britney said during a radio interview in 2017. “So then I called him, and ever since then, he is just a really fun, funny person.”
Source : https://www.distractify.com/p/how-long-have-britney-spears-and-sam-asghari-been-dating