Johnny Manziel's fiancee, Bre Tiesi, almost had one of her lips torn off by a dog ... but it looks like she's gonna be OK after one of the Kardashians' plastic surgeons worked his magic.
Bre detailed the scary incident on social media -- saying her lip was "legit hanging off" after she tried to break up a canine throwdown involving her two pups.
But the IG model wasn't about to let a random ER doc mess with her kisser ... so she hit up Garth Fisher -- a Beverly Hills surgeon who's worked on Kris Jenner -- and he stitched her up, good as new.
Well, not exactly ... but Bre says she should be scar-free in just a few weeks!
Not like she wouldn't be smokin' hot either way.
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