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If Sami Sheen is at all fazed about recent developments in her mom's contentious divorce, she sure as hell ain't letting show -- 'cause she's too busy posting thirst traps.

Here's the deal ... Denise Richards just asked a judge to boot her estranged husband Aaron Phypers and his family out of their home for a day so she can get her pets and belongings.

While that news was coming to light ... SS dropped some new bikini snaps to her Insta -- including one in a polka-dotted number. She also left little to the imagination in a tight white crop top.

She also shared a few pics of her food ... but, we're sure Sami knows which photos are going to grab the most eyeballs.

It's a good bet the timing of her post is nothing more than a coinciden

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