Kristin Cavallari. (Jason Merritt/GETTY IMAGES FOR RELATIVITY MEDI)

About a month after Justin Timberlake and Mila Kunis each agreed to spend an evening on the arm of a Marine, Lance Cpl. Jonathan Burkett asked the MTV reality star to be his date via Twitter. Less than 30 minutes later, Cavallari accepted.

“It’s a nice way to say thank you for everything [Burkett’s] done for this country,” Cavallari told 10 News in San Diego. “Seeing faces of the people that are fighting for our county ... puts everything into perspective.”

Timberlake accompanied Cpl. Kelsey De Santis to her ball last weekend. He penned an emotional blog post about the evening, saying it had changed his life. Kunis is set to attend a ball in North Carolina this evening.

Burkett thanked Cavallari on Twitter for the “amazing time.” Watch the pair talk about the evening with 10 News here.