Getting Mila Kunis to be your date for anything is the equivalent of winning the lottery, really. Hence the can't-believe-my-luck grin on Sgt. Scott Moore's face while escorting Kunis to the Marine Corps Ball in Greenville, North Carolina, over the weekend. See People's website for the photo evidence. The 28-year-old actress -- sporting a classic black dress and Audrey Hepburn bangs -- "was very nice and very respectful," a Marine who attended the event tells the magazine. "She gets credit and a lot of respect for coming here, not being part of this world and following through on her word." Moore kicked off a trend last summer when he invited Kunis to the Marine Ball on YouTube; officer Kelsey De Santis followed suit with Justin Timberlake, and the "SexyBack" singer graciously accepted. "I didn't bring it on the dance floor," De Santis said after taking Timberlake to the Nov. 12 Instructor Battalion Ball in Virginia. "But the entire night was bringing sexy back, I guess you could say."