Alix Earle's Fun Baecation With BF Braxton Berrios in St. Barts

Alix Earle just joined the St. Barts celeb parade, turning up the heat with her NFL beau, Braxton Berrios -- and trust us, looks like no one else is having a better time than these two. The TikToker and NFLer's holiday checklist? Lounging in tiny…