Kate Hudson showed off her amazing bod at the Versace show at Paris Haute Couture Fashion Week on Sunday night, as she posed with the label's designer, Donatella, and with her mom Goldie Hawn.

Kate's red cut-out number revealed half her body, basically -- including the upper region of her ass. Loves!

Donatella wore some seriously-flared pants and a cropped jacket ... and we won't go any farther with the description of her look. We'll just stop here ...

And who's that other hottie in our pic? What? You mean you don't recognize the Fast and the Furious star in a short dress? Well, yes -- that sexy-legged beauty is the sometimes tomboyish Michelle Rodriguez who glammed it up for the event. Who knew she could clean up like that?!