Serena Williams, 42, looks stunning in a white swimsuit 9 months after ... trends now

Serena Williams took to Instagram on Friday to share sexy swimsuit snaps taken in a swimming pool.

The 42-year-old tennis star looked incredibly toned and slender in the white bathing suit.

The tennis diva looked slender after welcoming her second child last year. 

Her long blonde hair was crimped and worn over her shoulders, and her makeup was light with pale pink lipstick.

'Water aerobics is a great way to add some fun to your workouts. Get ready for that hot girl summer body - here I come! @wyn, Beauty You Can Move In,' wrote the athlete in her caption.

In February she talked her confidence.

'I find that I have to remind myself of that self-love through all different stages in my life,' said the tennis great.

She then talked her figure, which looked in great shape.

'Right now I love that my body is not picture perfect,' she said.

'I love that I smell like milk - that milk sustains @adiraohanian I love getting to know a new version of my body. 

'It is a change, but it’s a change that has been well worth it. So start this week, knowing that you are loved, and that starts with you.

'Ok, now I’m about to go to the gym. Serena.'

This comes after the athlete welcomed her second daughter with husband Alexis Ohanian in August.

She shared a sweet clip of herself, husband and daughter Olympia, five, with the newborn baby named Adira River Ohanian. 

The caption read: 'Welcome my beautiful angel.'

In the video Serena is seen looking pretty in a pink dress in honor of her new daughter as she walks over to Alexis and kisses him.

Olympia, also in pink, walks over to join her parents, who

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