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When it came to turning the big 3-6, Ashton Kutcher kept things pretty low-key.
The Two and a Half Men star celebrated by way of a casual birthday lunch with girlfriend Mila Kunis at Casa Vega in Los Angeles on Friday, Feb. 7.
A source told E! News that the two were both dressed in jeans and snacked on guacamole, a fajita salad and some tacos.
Our eyewitness added that the cute couple mostly kept to themselves and clearly appeared to be enjoying their afternoon date.