Jared Goff's swimsuit model fiancée, Christen Harper, is celebrating her final days as an unmarried woman in fitting fashion ... soaking in the Mexico sun with other models in teeny bikinis!!!
The 30-year-old -- who got engaged to Goff back in June 2023 -- piled into a plane on Thursday morning with a grip of her closest friends ... and headed off to Cabo San Lucas to let loose one last time before her upcoming nuptials.
And, once they touched down, first order of business appeared to be to throw on some swimwear and catch some rays by a pool at a luxurious resort.