Britney Spears dropped an eye-popping new thirst trap on Friday … and the IG video captures some NSFW dancing!

In the short clip … the pop superstar is wearing a little yellow bikini … along with a hat and sunglasses … as she seductively dances and twerks while kneeling in shallow water. The post has already racked up more than 170K likes!

Of course … this is far from the first time Brit has posted something a little naughty on her IG account … the star often rockin’ risqué outfits while dancing in home L.A. home.

The sizzling trap — captioned “Hello yellow!” — drops on the heels of Brit reveling that not too long ago … she burned off her eyebrows and eyelashes in a fireplace mishap!

As you may recall … the superstar recounted her near-miss, saying she usually has her security handle the fireplace lighting because it’s caused some drama before … but 6 months ago, she took matters into her own hands, and it blew up in her face — literally!