Entertainment TV Reunited! 'SVU' Stars Mariska Hargitay and Christopher Meloni Get Together for His Birthday Meloni kicked off the photo exchange with a photo of him giving his smiling former costar a kiss on the cheek, captioned "What?" By Stephanie Petit Stephanie Petit Stephanie Petit is a Royals Writer/Reporter at PEOPLE. She has been with the brand since 2016 after graduating from The College of New Jersey and holding previous positions at Seventeen, CBS Radio and more. Follow the proud dog mom on Twitter at @stephpetit_ for the latest on Queen Elizabeth's corgis. People Editorial Guidelines Published on April 2, 2017 01:14 PM Share Tweet Pin Email Detective Benson and Detective Stabler are back! Law & Order: Special Victims Unit favorites Christopher Meloni and Mariska Hargitay reunited over the weekend in honor of the actor’s 56th birthday on Sunday. “Bensler” fans were thrilled to see the get-together documented on social media. Meloni kicked off the photo exchange with a photo of him giving his smiling former costar a kiss on the cheek, captioned “What?” Hargitay, 53, responded moments later with a picture of her nuzzling into Meloni’s neck with the same question. The actress also shared a selfie of the duo, writing, “Happy Birthday.” The duo starred in the first 12 seasons of SVU together, but split up as fictional partners when Meloni left the long-running series in 2011. Hargitay remains on the show, which is now in its 18th season. In real life, however, Hargitay and Meloni remain close friends. Most recently, the costars celebrated Valentine’s Day with a sweet snap shared with fans. “And then that happened… Just when I thought Valentine’s Day was over,” the actress captioned a photo posted Wednesday of Meloni planting a kiss on her cheek while she smiled. FROM COINAGE: The Most Expensive TV Shows of All Time The duo also posted a cute selfie around the holidays and also showed off their selfie game last March during another off-screen get-together. Law & Order: Special Victims Unit airs Wednesdays (at 9 p.m. EST/8 p.m. CST) on NBC.