Brooks Koepka's Sports Illustrated Swimsuit model wife, Jena Sims, is proving she's serious about her bikinis ... rocking a two-piece while showing off her golf swing!!
The Koepkas went on a luxurious getaway to the Bahamas recently ... and thankfully, they provided a ton of content to allow their followers to live vicariously through them.
Naturally, tiny bathing suits were part of the dress code -- even on the course, where Sims hit some balls as Brooks watched nearby.