Given their private nature, the couple have not revealed any further details on their engagement-as in how long they are going to wait to tie the knot.
Since then, Turner, 21, and Jonas, 28, have been seen together frequently and last month adopted a puppy.
Jonas' younger brother, Nick, congratulated the pair on Twitter.
"YES!" Nick wrote, while Kevin similarly chimed in with, "Yeah!"
In September, Kit Harington and Rose Leslie, both 30, who played love interests Jon Snow and Ygritte in "Game of Thrones", announced their own engagement. Congratulations to my brother... and sister-in-law to be on your engagement.
Hamas, Fatah pen landmark reconciliation deal in Cairo
The Fatah official stressed that President Mahmoud Abbas instructed the delegation not to return without a reconciliation deal. Hamas seized Gaza from Fatah in a near civil war in 2007 and the two factions have been at loggerheads ever since.
If you're looking for a distraction from all the Hurricane Ophelia content now doing the rounds on social media, can we ask you to direct your attention towards the Instagram accounts of Joe Jonas and Sophie Turner?
Earlier this year, Turner spoke about their relationship for the first time. I love you both so much. "And people I've met recently in my life have drawn me out of that".
According to the British starlet, she's in a much more positive place in life than she was before.
"I am very happy", she coyly told Marie Claire. "I found it easier to date someone who understands the industry or is in that world", she said.