After working up a sweat together, Khloé Kardashian and her boyfriend Tristan Thompson celebrated the Fourth of July by getting wet and wild — on a huge inflatable water slide!

The KUWTK star and her NBA "bae" worked out before enjoying the festivities, sharing a mirror selfie together on Snapchat and captioning the cute moment, "after workout pose."

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Khloé, 32, showed off her toned midriff in the photo, just days after fans were convinced she was expecting her first child with Tristan, 26.

As a reward for burning calories, the couple had some fun on the huge water slide before enjoying treats, including chocolate covered strawberries and gold-dusted mini ice cream cones.

Tristan adorably cheered on Khloé as she slid down the slide into a tiny pool of water in her workout clothes, saying, "Alright, come down! Let's go," in the short video clip.

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Also enjoying the fun is momager Kris Jenner, who joins her daughter, who is wearing a red St. Tropez one-piece by Fox Swim, to wish her followers a happy Fourth of July on the social media platform.

Noticeably missing from the party were Khloé's sisters — who were busy with celebrations of her own. Kourtney Kardashian was spotted in St. Tropez with her much younger boy toy Younes Bendjima while Kim Kardashian was cooking up a Jamaican feast.

As for Khloé and Tristan, it looks like things are getting serious — and this star-spangled get together was just the latest sign.

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"They’re talking about getting engaged by September,” an insider told Life & Style exclusively of the couple, who started dating in August 2016.

“Tristan has asked her sisters what kind of ring she’d want,” the insider added, “and he’s planning a very romantic proposal.”

In a recent episode of the family's reality show, Khloé also seemed ready to settle down with the Cleveland Cavaliers star.

"Tristan and I definitely talk about having kids," she said. "He wants to have five or six kids with me and that's lovely. We could start at one and grow from there."

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