Kate Middleton makes first solo outing with Queen Elizabeth -- eight months after Meghan Markle!

Kate's first outing with the Queen!

Kate Middleton and Queen Elizabeth stepped out for their first-ever joint outing on Tuesday when they attended the opening of Bush House at King's College London's Strand Campus. 

SEE ALSO: Kate and Meghan make telling move after rumored feud

Duchess Kate donned a grey Catherine Walker coat dress, while the Queen opted for a light pink Stewart Parvin coat and matching hat. The pair arrived together in a car, sitting side-by-side and sharing a blue blanket to keep warm while driving to the university.

See photos from their outing below:

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Duchess Kate and Queen Elizabeth step out at Bush House
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Duchess Kate and Queen Elizabeth step out at Bush House
Britain's Queen Elizabeth II and Britain's Catherine, Duchess of Cambridge arrive to visit Kings College, to open Bush House, the latest education and learning facilities on the Strand Campus, in central London on March 19, 2019 (Photo by Niklas HALLE'N / AFP) (Photo credit should read NIKLAS HALLE'N/AFP/Getty Images)
Britain's Queen Elizabeth II and Britain's Catherine, Duchess of Cambridge arrive for a visit to Kings College, to open Bush House, the latest education and learning facilities on the Strand Campus, in central London on March 19, 2019 (Photo by Niklas HALLE'N / AFP) (Photo credit should read NIKLAS HALLE'N/AFP/Getty Images)
LONDON, ENGLAND - MARCH 19: Queen Elizabeth II and Catherine, Duchess of Cambridge visit King's College to officially open Bush House, the latest education and learning facilities on the Strand Campus on March 19, 2019 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - MARCH 19: Queen Elizabeth II and Catherine, Duchess of Cambridge visit King's College London on March 19, 2019 in London, England to officially open Bush House, the latest education and learning facilities on the Strand Campus. (Photo by Samir Hussein/WireImage)
LONDON, ENGLAND - MARCH 19: Queen Elizabeth II and Catherine, Duchess of Cambridge visit King's College London to officially open Bush House, the latest education and learning facilities on the Strand Campus on March 19, 2019 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - MARCH 19: Catherine, Duchess of Cambridge visits King's College London on March 19, 2019 in London, England to officially open Bush House, the latest education and learning facilities on the Strand Campus. (Photo by Samir Hussein/Samir Hussein/WireImage)
LONDON, ENGLAND - MARCH 19: Queen Elizabeth II and Catherine, Duchess of Cambridge visit King's College London to officially open Bush House, the latest education and learning facilities on the Strand Campus on March 19, 2019 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - MARCH 19: Catherine, Duchess of Cambridge visits King's College London on March 19, 2019 in London, England to officially open Bush House, the latest education and learning facilities on the Strand Campus. (Photo by Samir Hussein/Samir Hussein/WireImage)
LONDON, ENGLAND - MARCH 19: Catherine, Duchess of Cambridge visits King's College London on March 19, 2019 in London, England to officially open Bush House, the latest education and learning facilities on the Strand Campus. (Photo by Samir Hussein/Samir Hussein/WireImage)
LONDON, ENGLAND - MARCH 19: Queen Elizabeth II accompanied by and Catherine, Duchess of Cambridge visit King's College London on March 19, 2019 in London, England to officially open Bush House, the latest education and learning facilities on the Strand Campus. (Photo by Joe Maher/Getty Images)
LONDON, ENGLAND - MARCH 19: Queen Elizabeth II accompanied by and Catherine, Duchess of Cambridge visit King's College London on March 19, 2019 in London, England to officially open Bush House, the latest education and learning facilities on the Strand Campus. (Photo by Joe Maher/Getty Images)
Britain's Queen Elizabeth II and Britain's Catherine, Duchess of Cambridge, are met by (L-R) Lord Mayor of Westmnster, councillor Lindsay Hall, former British prime minister Sir John Major, president and principal of Kings College Professor Edward Byrne and chairman of council, Lord Geidt, on their arrival to visit Kings College, to open Bush House, the latest education and learning facilities on the Strand Campus, in central London on March 19, 2019 (Photo by Niklas HALLE'N / AFP) (Photo credit should read NIKLAS HALLE'N/AFP/Getty Images)
Britain's Queen Elizabeth II and Britain's Catherine, Duchess of Cambridge, are met by (L-R) Lord Mayor of Westmnster, councillor Lindsay Hall, former British prime minister Sir John Major, president and principal of Kings College Professor Edward Byrne and chairman of council, Lord Geidt, on their arrival to visit Kings College, to open Bush House, the latest education and learning facilities on the Strand Campus, in central London on March 19, 2019 (Photo by Niklas HALLE'N / AFP) (Photo credit should read NIKLAS HALLE'N/AFP/Getty Images)
Britain's Queen Elizabeth II and Britain's Catherine, Duchess of Cambridge arrive for a visit to Kings College, to open Bush House, the latest education and learning facilities on the Strand Campus, in central London on March 19, 2019 (Photo by Niklas HALLE'N / AFP) (Photo credit should read NIKLAS HALLE'N/AFP/Getty Images)
LONDON, ENGLAND - MARCH 19: Queen Elizabeth II and Catherine, Duchess of Cambridge visit King's College London to officially open Bush House, the latest education and learning facilities on the Strand Campus on March 19, 2019 in London, England. (Photo by Neil Mockford/GC Images)
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Twitter users jumped at the subtle move, calling it "the cutest thing ever."

Throughout the rest of the visit, Kate and Queen Elizabeth appeared to be at ease in one another's presence and kept things very professional while visiting the building's rooftop terrace to take in views of London. While leaving the new development, they were each given flowers.

This is the first time that Duchess Kate and Her Majesty have stepped out together since March 2012, but even then they were joined by the Queen's husband, Prince Philip, during a visit to Leicester. Considering Kate married Prince William back in 2011, she waited a whole eight years before being able to attend an official public engagement with the monarch on her own.

SEE ALSO: Queen Elizabeth instructs Meghan Markle on royal protocol during first joint outing

Meanwhile, Meghan Markle stepped out for a solo appearance with Queen Elizabeth eight months ago last June, less than a month after marrying Prince Harry in May 2018, during a visit to Chesire, where they were famously all smiles and shared numerous laughs together.

See photos from that outing below:

23 PHOTOS
Meghan Markle makes first solo outing with Queen Elizabeth
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Meghan Markle makes first solo outing with Queen Elizabeth
WIDNES, CHESHIRE, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex arrive to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
WIDNES, CHESHIRE, ENGLAND - JUNE 14: Queen Elizabeth II laughs with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex arrive at Runcorn Train Station on June 14, 2018 in Chester, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Neil Mockford/GC Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex arrive at Runcorn Train Station on June 14, 2018 in Chester, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Neil Mockford/GC Images)
RUNCORN, CHESHIRE, ENGLAND - JUNE 14: Queen Elizabeth II is greeted with Meghan, Duchess of Sussex as they arrive by Royal Train at Runcorn Station to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Runcorn, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Peter Byrne - WPA Pool/Getty Images)
WIDNES, ENGLAND - JUNE 14: Queen Elizabeth II sits with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
WIDNES, ENGLAND - JUNE 14: Queen Elizabeth II sits with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
WIDNES, ENGLAND - JUNE 14: Queen Elizabeth II stands and laughs with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
WIDNES, ENGLAND - JUNE 14: Queen Elizabeth II sits and laughs with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II sitts and laughs with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II stands with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II sitts and laughs with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
WIDNES, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex during a visit to the Catalyst Museum by the Mersey Gateway Bridge on June 14, 2018 in Widnes, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex. This is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Mark Cuthbert/UK Press via Getty Images)
WIDNES, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex during a visit to the Catalyst Museum by the Mersey Gateway Bridge on June 14, 2018 in Widnes, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex. This is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Mark Cuthbert/UK Press via Getty Images)
RUNCORN, CHESHIRE, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex arrive by Royal Train at Runcorn Station to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Runcorn, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Peter Byrne - WPA Pool/Getty Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II sits with Meghan, Duchess of Sussex during a ceremony to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex arrive to open the new Mersey Gateway Bridge on June 14, 2018 in the town of Widnes in Halton, Cheshire, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Jeff J Mitchell/Getty Images)
CHESTER, ENGLAND - JUNE 14: Children look on as Queen Elizabeth II and Meghan, Duchess of Sussex arrive for their visit to the Storyhouse on June 14, 2018 in Chester, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Phil Noble - WPA Pool/Getty Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex visits the Storyhouse on June 14, 2018 in Chester, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Phil Noble - WPA Pool/Getty Images)
CHESTER, ENGLAND - JUNE 14: Queen Elizabeth II and Meghan, Duchess of Sussex visit Chester Town Hall on June 14, 2018 in Chester, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex and this is her first engagement with the Queen. During the visit the pair will open a road bridge in Widnes and visit The Storyhouse and Town Hall in Chester. (Photo by Chris Jackson/Getty Images)
CHESTER, ENGLAND - JUNE 14: Meghan, Duchess of Sussex meets the public as she and Queen Elizabeth II walk from Storyhouse to Chester Town Hall on June 14, 2018 in Chester, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex. This is her first engagement with the Queen. During the visit the pair opened a road bridge in Widness, visited The Storyhouse in Chester ofllowed by the Town Hall. (Photo by Anthony Devlin/Getty Images)
CHESTER, ENGLAND - JUNE 14: Meghan, Duchess of Sussex meets members of the public as she joins Queen Elizabeth II to walk from Storyhouse to Chester Town Hall on June 14, 2018 in Chester, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex. This is her first engagement with the Queen. During the visit the pair opened a road bridge in Widness, visited The Storyhouse in Chester ofllowed by the Town Hall. (Photo by Anthony Devlin/Getty Images)
CHESTER, ENGLAND - JUNE 14: Meghan, Duchess of Sussex waves as she joins Queen Elizabeth II to walk from Storyhouse to Chester Town Hall on June 14, 2018 in Chester, England. Meghan Markle married Prince Harry last month to become The Duchess of Sussex. This is her first engagement with the Queen. During the visit the pair opened a road bridge in Widness, visited The Storyhouse in Chester ofllowed by the Town Hall. (Photo by Anthony Devlin/Getty Images)
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