Shauna Sexton -- the Playboy model who's been grabbing food with Ben Affleck lately -- is lookin' like a snack herself ... in a sexy swimsuit.
Playboy's Miss May 2018 hit the sand in Malibu Wednesday -- without Ben -- rocking a head-turning thong bikini as she caught some rays and took in a dip in the ocean.
Pretty easy to see how Shauna might have caught Batman's eye.
As we reported ... Ben and the 22-year-old model were seen leaving Nobu Malibu last Thursday after a dinner date, and the 2 were also spotted going through a Jack in the Box drive-thru Sunday.
The sightings signaled Ben had broken up with Lindsay Shookus, who we saw being lovey dovey with him back in May when he was moving into his $19 million Pacific Palisades mansion.
The 2 hadn't been photographed together in a month, though ... and now we know why.
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