Lisa Rinna snuggles her husband of 18 years Harry Hamlin on family lunch... after being forced to defend her marriage on Real Housewives of Beverly Hills

They celebrated their 18-year wedding anniversary with a sun-soaked trip to the tropics just days ago.

And lovebirds Lisa Rinna and Harry Hamlin showcased the strength of their marriage once more during a family meal at Nobu Malibu on Easter Sunday.

The 51-year-old lovingly wrapped her arms around the 63-year-old's shoulders after grabbing a bite to eat with their daughters Amelia, 13, and Delilah, 16.

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Going strong: Lisa Rinna embraced her husband Harry Hamlin during a family meal at Nobu Malibu on Easter Sunday

Going strong: Lisa Rinna embraced her husband Harry Hamlin during a family meal at Nobu Malibu on Easter Sunday

Lisa wore entirely white while wearing her hair down in its signature short 'do.

She led the way for her family while carrying a cream coat and shading her eyes behind aviator sunglasses. 

Harry trailed close beside his wife while sporting an unbuttoned white shirt, dark jeans, and a black jacket.

Family first: Lisa flashed a wide grin while huddled close with her husband and daughters Amelia and Delilah

Family first: Lisa flashed a wide grin while huddled close with her husband and daughters Amelia and Delilah

Ignoring the gossip: The reality star lovingly wrapped her arms around her husband of 18 years

Ignoring the gossip: The reality star lovingly wrapped her arms around her husband of 18 years

Their daughters convened beside their parents while looking the height of style with their matching tops.

Recently, gossip has surrounded Lisa's marriage after an explosive argument on The Real Housewives Of Beverly Hills brought her husband into focus. 

And Lisa defended her marriage in an interview with Closer.

Family fashion: The soap opera star led the way for her daughters  while wearing entirely white

Family fashion: The soap opera star led the way for her daughters while wearing entirely white

'Marriage takes work, and there's a reason why we are still together,' Lisa said. 'If you go and do a show and your marriage is already in trouble, then it will come out. If you're solid, nothing can shake you. And nothing - not even Housewives - can shake Harry and I.'

Her husband added: 'I was actually proud of her. Every time I see [that scene], I go, "You go, girl!"'

Speaking about what has contributed to the success of their romance, he responded: 'Great sex!'

Firing back: Lisa took aim at rumours surrounding her husband with a playful photo posted on April Fool's Day

Firing back: Lisa took aim at rumours surrounding her husband with a playful photo posted on April Fool's Day

Lisa added: 'I am fiercely protective of my family...You mess with my family, you mess with me!' 

On April Fool's Day, the actress took aim at rumours surrounding Harry when she posted a photo of herself dressed as Justin Bieber.

Under the hashtag '#WhatDiDHarryDo' the reality star wrote, 'He had Sex with Justin Bieber. #aprilfools'.

Enjoying a spot of R&R: The family appeared to be patiently awaiting the arrival of their vehicle

Enjoying a spot of R&R: The family appeared to be patiently awaiting the arrival of their vehicle

The playful post comes after many believed that her Real Housewives Of Beverly Hills co-star Kim had implied that Lisa's actor husband was gay during their blow out fight in Amsterdam.

A source recently told OK! magazine that the dark secret Kim was referring to involved Lisa's husband being gay.

Harry, who plays a gay doctor on Shameless, has been the subject of similar rumours in the past. His wife's rep, however, brushed off the allegations when talking to OK!.

On the go: While her daughters sported a pair of ankle heels and sandals, Lisa made do with a pair of comfortable trainers

On the go: While her daughters sported a pair of ankle heels and sandals, Lisa made do with a pair of comfortable trainers

In a now infamous RHOBH episode that aired in early March, Lisa threw a glass of wine at Kim during an outrageous argument.

Lisa's explosion came after Kim refused to accept her apology for bringing up past issues with substance abuse.

And Kim unexpectedly turned the tables on Lisa, telling her: 'I'm concerned about you, and your situation at home. You wanna bring out my stuff, let's talk about your home life.'

Like mother, like daughter: Lisa's daughters were shaping up to be just as stylish as their mother

Like mother, like daughter: Lisa's daughters were shaping up to be just as stylish as their mother

As Eileen Davidson angrily intervened - telling her 'shame on you' - Kim snapped: 'Shut your f***ing mouth, I've had enough of you, you beast.'

As Yolanda Foster tried to calm everyone down, she mentioned about how Lisa was understanding because she has admitted that her husband Harry has only been sober for three years.

'Let's talk about the husband,' Kim said spitefully. 'Let's not talk about what you don't want out.'

Explosive: The star was embroiled in a fight with Kim Richards on The Real Housewives Of Beverly Hills

Explosive: The star was embroiled in a fight with Kim Richards on The Real Housewives Of Beverly Hills

That was when Lisa exploded, initially trying to grab Kim's face as she snapped: 'Let me tell you something - don't touch my husband, ever.'

'If you don't want it out for everybody to know, you better watch what you talk about me, or everybody will know,' Kim replied. 'Everybody will know.'

Lisa then stood up, threw the contents of her glass at Kim and then angrily smashed it on the table's edge, screaming as Yolanda held her back: 'You never go near my husband! Don't you f***ing understand that? You never go after my f***ing husband!'

Flashback: The star remembered her time as a tot on Easter Sunday with this throwback photo shared on Sunday

Flashback: The star remembered her time as a tot on Easter Sunday with this throwback photo shared on Sunday

Later, she asked: 'What the f*** does Kim Richards know - what does she know about Harry? What did he do? She doesn't even know my husband.' 

In a trailer for the reunion episode, host Andy Cohen expands on this supposed 'secret' of Lisa's husband.

'You heard he had an affair?' Cohen asks Kim.

'Did he have an affair, what did he do?' Rinna chimes in, goading Kim into a response.

Kim is then seen with raised eyebrows, but viewers will have to wait until the show airs to see what she comes up with.

The second part of the reunion episode will air on Bravo on Tuesday.  

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