The video showcases Williams and six different diverse women of different body shapes — all wearing the same long-sleeve Serena Twist Tie Front Dress in Red ($120).

On Saturday, the mother of 22-month-old Alexis Olympia, debuted her new dress on Instagram by sharing a video of herself alongside six other women, all wearing her red Twist Front Dress.

The dress is available in sizes 8 to 22 and based on recent reviews, it fits true-to-size. Already in-demand over on M&S, we don't suggest hanging around before snapping up this versatile and ...