Jess, 27, didn't actually announce the engagement herself, but photos published by The Sun left nothing in doubt, as Jess was seen flashing a diamond ring for the cameras and beaming as boyfriend Denny Solomona gets down on one knee in Sin City.
She later tweeted: "Thanks for all the lovely messages I'm overwhelmed."
Danny, meanwhile, told his own Twitter followers: "SHE SAID YES.. Over the moon to have asked my best friend to marry me ..been through a lot but wouldn't have wanted it any other way."
Thanks for all the lovely messages I'm overwhelmed— Jess Impiazzi (@jess_impiazzi) November 3, 2016
Jess had hinted at a special evening when she tweeted: "Just had the most amazing meal with @DennySolomona @CasaDiAmore #lasvegas I'm in love with this place."
But she hadn't given any clue about how amazing the night had been!
So far there's been no shiny ring picture on social media, but Jess did share an Instagram photo on Wednesday after checking into the plush Venetian hotel in Las Vegas, calling it the "most gorgeous hotel" ever.
She's not shy about gushing over Denny on social media. Denny, 23, is from New Zealand and currently plays for Castleford Tigers in West Yorkshire.
Jess has previously called him "my world" and even has his initials tattooed on her body.
Jess began dating Denny in 2015 but they later split. She told us in August she was "currently single" and too busy to date… was she bluffing?!
"I haven't really been talking to anyone... I'm being boring," she said, adding her ideal man is "someone who is normal, who can make me laugh. That's all I care about now."
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