Cooper, 23, has taken Beyoncé’s advice and put a beautiful diamond ring on 24-year-old Scarlett’s finger after almost two years of dating.
Sharing a collage on Instagram, he wrote: “To many more adventures with this lovely lady @scarleybyrne.”
Scarlett also shared the exciting news on Instagram, posting this photo with the caption: “I was lucky enough to fall in love with my best friend.”
Hugh Hefner himself has since tweeted his congratulations to the happy couple, writing: “Sending love and congratulations to my son Cooper and his fiancee Scarlett on their engagement!”
Is 10.30am too early to crack open the champagne or…?
According to Us Weekly, Cooper flew over to London, Scarlett’s birthplace, to ask her dad for permission to pop the question before getting down on one knee on Tuesday.
The two then apparently celebrated at The Ritz along with their families – including Cooper’s grandma. N’aww!
Scarlett played Pansy Parkinson in Harry Potter, and has also had roles in Falling Skies and The Vampire Diaries.
No word on whether chocolate frogs will be served at the wedding, or whether guests will be assigned to their seats using the sorting hat.
Congratulations once again to the happy couple!