Stranger Things star married Lily in Vegas last year and plays Rachel's love interest in upcoming Marvel film, Black Widow. In the first snap, David was seen covered in green paint as he went to plant a kiss on beaming Lily's cheek after filming the Saturday Night Live parody of Oscar the Grouch's gritty origin story.
The second saw the star in full costume as Alexei Shostakov / Red Guardian while cuddling up to Rachel, who plays Melina Vostokoff / Black Widow.
The pair also star alongside Scarlett Johansson and Florence Pugh in the superhero movie, which hits cinemas and Disney+ on July 9.
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