Wedding crasher: Serena Williams found herself crashing a wedding on the beach while clad in a leopard print leotard that highlighted her curvaceous figure.

The suit showed off her slim waist and athletic legs – with Serena captioning one of the images posted on Saturday: ‘Leotard is the new bikini’.

She had let her highlighted hair down, framing her face with her thick voluminous mane.

Serena served up quite a contrast posed next to the newly married couple, who were dressed all in white.

The 23-time Grand Slam champion frolicked on the beach with Caroline – formerly ranked number one in women’s tennis – who sported a cropped black T-shirt over a striped dark blue and turquoise bikini.

Naughty: The 42-year-old tennis superstar posed with the bride in a snap captioned, ‘Bikini wedding crasher!’

Wedding portrait: While a little bemused, the couple still seemed thrilled by the surprise guest, and everyone made sure to take a lot of photos.

Curvaceous: The suit showed off her tiny waist, S shape, and athletic legs.

Curves ahead: Serena couldn’t help but display her shapely derriere and athletic legs in the outfit

Looking ace: Serena was redefining beachwear by sporting a leotard instead of a swimsuit.

Splish splash! The two waded through the water.

Let’s celebrate: Before taking a dip in the sea the pair were seen sipping on cocktails from their sunloungers.

Gal pals: The 23-time Grand Slam champion frolicked on the beach with BFF Caroline.

Beach babes: Serena had let her highlighted hair down, framing her face with her thick voluminous mane.

Work it: Serena posed provocatively on the beach.