Brooks Nader reveals which A-lister asked for sister Grace Ann’s phone number at the Met Gala

Brooks Nader has some competition.

The model has been having a blockbuster year after her run on “Dancing With the Stars,” appearing in a Hulu reality show with her sisters and nabbing a role in the forthcoming “Baywatch” reboot.

However, it was her younger sister Grace Ann who became the first member of the famous family to attend the Met Gala earlier this month.

“I was filming Baywatch in LA and I’m still speechless over the fact that she was there,” Nader, 29, told Page Six exclusively at the Sports Illustrated Swimsuit Issue launch party Thursday.

Grace Ann wore a sheer, strapless Mugler corset dress to the “Costume Art”-themed event — and even had a flirty run-in with an A-lister in disguise.

“She was cracking me up because she was like, ‘I was in the bathroom with this guy who was like 90 years old and he had a younger voice and asked for my number,'” Brooks told us — revealing that it was none other than Bad Bunny in full facial prosthetics that fooled Grace Ann.

Brooks quipped, “I was like ‘OK Grace Ann, cool.’ Yeah she’s an idiot, obviously.”

When asked if her sibling (who attended the ball with boyfriend Jack Jones) ever connected with the Super Bowl halftime performer, Brooks said, “I didn’t even follow up because I kind of had FOMO in a little bit of a way. But I was also filming so, you know what, I was working.”

Joked the star, “Everyone looked amazing at the Met Gala — except my sister!”