Leaving his fresh prints! Will Smith pinches Jada Pinkett's behind as they arrive for Rihanna's Diamond Ball in Los Angeles

He recently described their marriage as 'grueling' and 'excruciating'.

But it looks like things are about to get a little more cheeky for Jada Pinkett as her husband prepared to pinch her bottom on Thursday night.

The couple of 20 years arrived on the red carpet together at The Barker Hangar for Rihanna's 2nd annual Diamond Ball.

Jada pinch-it! Will Smith swooped in for a piece of his wife on the red carpet of Rihanna's Diamond Ball in Los Angeles on Thursday night

Jada pinch-it! Will Smith swooped in for a piece of his wife on the red carpet of Rihanna's Diamond Ball in Los Angeles on Thursday night

The 47-year-old Concussion star looked dashing in a black tuxedo, wearing the salt that's creeping into his pepper goatee rather well.

His 44-year-old wife meanwhile stunned in a fabulous floor-length sleeveless one-shoulder white gown.

The Gotham star flashed her gorgeous legs in a thigh-high side split, teasing even more of her fab figure with the half-open zip that ran across her chest and all the way down to her hip.

The 47-year-old Concussion star looked dashing in a black tuxedo, wearing the salt that's creeping into his pepper goatee rather well

The 47-year-old Concussion star looked dashing in a black tuxedo, wearing the salt that's creeping into his pepper goatee rather well

Staying power: The couple of 20 years arrived together at The Barker Hangar for Rihanna's 2nd charity gig, in honour of her grandmother

Staying power: The couple of 20 years arrived together at The Barker Hangar for Rihanna's 2nd charity gig, in honour of her grandmother

Work winter white this party season in Zuhair Murad

There was some seriously high octane glamour at Rihanna's Diamond Ball last night.

Kylie Jenner wore a stunning nude gown by August Getty, the hostess shone in gold by Christian Dior and Jada Pinkett Smith did winter white in Zuhair Murad. Those high end labels just kept on coming.

Jada looked simply sexy in this one shoulder maxi by the Lebanese designer. We love the clean silhouette, thigh high split and those zips... well they're just very suggestive aren't they but we don't see her husband Will Smith complaining.

Murad is a favourite for the red carpet and we can see why. His designs are guaranteed to turn heads and this Resort 2016 look is no exception. It's not available to buy just yet but if you've got a few thousand pounds burning a hole in your pocket then click (right) to check out his current collection at Luisaviaroma.com.

Or recreate Jada's one shouldered style for less with our edit of more affordable options below.

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She finished the beautiful outfit with a pair of silver strappy heels, diamond bangle and a pair of long dangle earrings.

The pinch may have been in revenge for the slap Jada gave him that morning to inform him of his Golden Globe nomination.

'My wife slapped me out of my sleep to wake me up and tell me,' He told the New York Times. 'She was just so ecstatic. 

Wow: His 44-year-old wife meanwhile stunned in a fabulous floor-length sleeveless one-shoulder white gown

Wow: His 44-year-old wife meanwhile stunned in a fabulous floor-length sleeveless one-shoulder white gown

Dare to bare: The Gotham star flashed her gorgeous legs in a thigh-high side split, teasing even more of her fab figure with the half-open zip that ran across her chest and all the way down to her hip
Dare to bare: The Gotham star flashed her gorgeous legs in a thigh-high side split, teasing even more of her fab figure with the half-open zip that ran across her chest and all the way down to her hip

Dare to bare: The Gotham star flashed her gorgeous legs in a thigh-high side split, teasing even more of her fab figure with the half-open zip that ran across her chest and all the way down to her hip

Thar she blows: She finished the beautiful outfit with a pair of silver strappy heels, diamond bangle and a pair of long dangle earrings.

Thar she blows: She finished the beautiful outfit with a pair of silver strappy heels, diamond bangle and a pair of long dangle earrings.

'It was like a really great married moment. We were so bound together. It was us, it was ours, "we" were nominated. It was a great recognition of how far we’ve come as a couple.'

These painful exchanges are perhaps why Will described his marriage to Entertainment Weekly using such choice terms.

'We've been married 20 years and we've been asking ourselves [what’s the secret to marriage] and really at the end of the day it’s just not quitting,' he said.

Diamonds and gold: The Barbadian beauty arrived at the gala wearing a rich satin gold cleavage-bearing gown

Diamonds and gold: The Barbadian beauty arrived at the gala wearing a rich satin gold cleavage-bearing gown

In loving memory: Thursday's ball was held in honor of the Clara Lionel Foundation, the humanitarian organisation set up by Rihanna - pictured with her niece -  and named after her beloved grandmother who passed away in 2012

In loving memory: Thursday's ball was held in honor of the Clara Lionel Foundation, the humanitarian organisation set up by Rihanna - pictured with her niece -  and named after her beloved grandmother who passed away in 2012

'You can’t expect it to be easy,' Will continued, adding: 'It’s like our marriage was the most difficult, grueling, excruciating thing that we have ever taken on in our lives. And you know we're just not quitters.'

Thursday's ball was held in honor of the Clara Lionel Foundation, the humanitarian organisation set up by Rihanna and named after her beloved grandmother who passed away in 2012.

The Barbadian beauty arrived at the gala wearing a rich satin gold cleavage-bearing gown.

Also spotted on the red carpet were Kylie Jenner and boyfriend Tyga, Emily Ratajkowski, Zendaya, and boxer Miguel Cotto.

Logistical problems? Kylie Jenner wore a gorgeous trailing ivory gown

Logistical problems? Kylie Jenner wore a gorgeous trailing ivory gown

Snap: Kylie's boyfriend Tyga can match Rihanna hand tattoo for hand tattoo

Snap: Kylie's boyfriend Tyga can match Rihanna hand tattoo for hand tattoo

Guess who's back: Model Emily Ratajkowski and Zendaya contrasted in black and white
Guess who's back: Model Emily Ratajkowski and Zendaya contrasted in black and white

Guess who's back: Model Emily Ratajkowski (L) and Zendaya contrasted in black and white

Knockout: Boxer Miguel Cotto arrived with wife Melissa

Knockout: Boxer Miguel Cotto arrived with wife Melissa

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