The Wedding Ringer star lived up to the movie's title by proposing with a huge diamond sparkler, which his bride-to-be showed off in a picture he posted on Instagram.
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The romantic star surprised the model on her 30th birthday by getting down on one knee in front of family and friends.
The 35-year-old had previously posted: "Happy Birthday to the most amazing woman in the world. Today is your day babe & we are going to party like it's 1999... I love you so much. I'm a better man because of you".
However the funnyman could not resist making a joke, adding: "P.S your old as s**t now lmao #Dirty30 #HappyBday #ThrowBackPic."
News of the engagement will undoubtedly cause further friction between Kevin and his former wife, Torrei Hart - who has previously claimed their marriage failed because Kevin cheated on her with Eniko as soon as his comedy career took off.
Kevin, who was married to fellow comic, 36-year-old Torrei Hart, from 2003 until 2011, angrily responded to her claims on social media.
He tweeted in May: "My woman has nothing to do with my past marriage problems in any way shape or form. It's almost 7yrs total of me not being with my Ex ... I guess giving a woman over 20k a month and still being there for her and being a incredible father isn't enough!"
The upcoming nupitals mean Eniko will officially become stepmother to the comic's two children, daughter Heaven, nine, and son Hendrix, five.
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