Hot mama! Sienna Miller showcased her fit summer bod while on vacation with longtime boyfriend Tom Sturridge in Formentera, Spain, on Friday, July 3.

The Factory Girl star, who is mom to 2-year-old daughter Marlowe with Sturridge, rocked a teeny snakeskin print bikini for the fun day in the sun ahead of the Fourth of July.

The 33-year-old has been vocal about getting back into shape since welcoming her mini-me in July 2012.

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“It’s hard, because there’s just no structure to my day. With a child and my job, I have enough to do, I can’t always make it to the gym,” Miller revealed to Jolie mag. “I do try to do something with my trainer Efua Baker every now and again, preferably yoga, but that’s not enough of course.”

Being a mom is a role Miller cherishes. “I was overwhelmed by how normal it felt. It was like, ‘There you are — that's what I have been missing.’ Like we're both in on something only we know,” she told Vogue in January 2015. “An amazing sense of being complicit with a little being.”

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