Careful! Zilda Williams' E cup assets almost fall out of her plunging playsuit as she parties in someone's backyard with The Bachelor's Noni Janur

She kept a low profile over winter, but now that summer is right around the corner, Zilda Williams is well and truly back in action.

The raunchy Sydney socialite made the most of warm weather over the weekend by attending an event for 90s-inspired swimwear label KARAMELEON in a Tamarama backyard on Sunday.

The busty 33-year-old, who was dressed in a plunging black playsuit, was joined by famed makeup artist Karyssa Leigh and The Bachelor's Noni Janur.

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Kisses! Zilda Williams almost suffered a wardrobe malfunction at an event for swimwear label KARAMELEON in someone's backyard in the beachside suburb of Tamarama on Sunday

Kisses! Zilda Williams almost suffered a wardrobe malfunction at an event for swimwear label KARAMELEON in someone's backyard in the beachside suburb of Tamarama on Sunday

Zilda had her legendary E cup assets on display, which came dangerously close to spilling out of her playsuit as she leaned forward to blow a kiss to her fans.

The New Zealand-born reality star wore her blonde locks in beachy waves, making her a dead ringer for fellow Kiwi Rachel Hunter.

Bachelor babe Noni decided to expose even more skin than the scantily-clad Zilda, showing leg, stomach, AND bust in a mini-skirt and a tied top with no bra.

All smiles: The 33-year-old tried to contain her famous E cup assets in a plunging black playsuit 

All smiles: The 33-year-old tried to contain her famous E cup assets in a plunging black playsuit 

Workin' it! The up-and-coming actress, who found fame on last year's season of The Bachelor, stunned her fans as she worked the camera from every angle
Workin' it! The up-and-coming actress, who found fame on last year's season of The Bachelor, stunned her fans as she worked the camera from every angle

Workin' it! The up-and-coming actress, who found fame on last year's season of The Bachelor, stunned her fans as she worked the camera from every angle 

The 25-year-old confidently flaunted her voluptuous figure in the skimpy ensemble, which could barely conceal her sizable chest.

Noni, who is also a swimwear designer, was happy to show support for rival brand KARAMELEON.

She was spotted browsing some of the stock, and even put her star power behind the label by posing with a few pieces.

Bombshell: The Bachelor 2016's Noni Janur also made an appearance at the fun-filled party

Bombshell: The Bachelor 2016's Noni Janur also made an appearance at the fun-filled party

Curves: The voluptuous 25-year-old left little to the imagination in a mini-skirt and tied midriff top that could barely conceal her enviable chest
Curves: The voluptuous 25-year-old left little to the imagination in a mini-skirt and tied midriff top that could barely conceal her enviable chest

Curves: The voluptuous 25-year-old left little to the imagination in a mini-skirt and tied midriff top that could barely conceal her enviable chest

Zilda who? The reality star decided not to sit with blonde bomshell Zilda, instead choosing to hang with a mystery brunette friend 

Zilda who? The reality star decided not to sit with blonde bomshell Zilda, instead choosing to hang with a mystery brunette friend 

Foursome: The socialites and Bachelor babes showed Richie Strahan and Sam Wood what they've been missing as they posed together 

Foursome: The socialites and Bachelor babes showed Richie Strahan and Sam Wood what they've been missing as they posed together 

Self-ie obsessed! The tech-savvy stars documented their antics on social media 

Self-ie obsessed! The tech-savvy stars documented their antics on social media 

Zilda also showed support for the brand, thanking the designer on Snapchat for gifting her with a free swimsuit which she promised to wear to the beach.

The outdoor event was themed around the '90s, with a '90s backyard bash concept complete with old-school hip-hop and R&B music.

There also appeared to be a lot of alcohol at the party, with Zilda becoming increasingly more disheveled in a string of videos she shared to Snapchat that documented her antics over the course of the day.

Bottoms up! Famed party girl Zilda enjoyed a boozy beverage as she relaxed in the sun 

Bottoms up! Famed party girl Zilda enjoyed a boozy beverage as she relaxed in the sun 

Throwback: The outdoor event was themed around the '90s, with a '90s backyard bash theme complete with old-school hip-hop and R&B music

Throwback: The outdoor event was themed around the '90s, with a '90s backyard bash theme complete with old-school hip-hop and R&B music

What would Sam Wood think? Zilda showed that she's well and truly moved on after being dumped by Sam on The Bachelor approximately fifteen months ago 

What would Sam Wood think? Zilda showed that she's well and truly moved on after being dumped by Sam on The Bachelor approximately fifteen months ago 

Tangled web: Makeup artist Karyssa appeared to be tangled in some streamers as her blonde cohort laughed at her predicament

Tangled web: Makeup artist Karyssa appeared to be tangled in some streamers as her blonde cohort laughed at her predicament

Animal lover: Animal activist Zilda reached out to pet a friendly pooch as Karyssa checked Instagram 

Animal lover: Animal activist Zilda reached out to pet a friendly pooch as Karyssa checked Instagram 

After the event came to a close, Zilda, Karyssa, and Noni ended up at a Bondi bar together where they continued boozing it up.

Bombshell Zilda was recently linked to NRL bad boy Willie Mason after the pair were spotted partying together at trendy Sydney hotspot Bungalow 8.

The aspiring actress has previously been linked to Firass Dirani, former Gold Coast Titans player Kevin Gordon, and Rebels bikie associate Mark Judge.

That won't fit you! Busty Noni reached out to touch a teeny tiny bikini bra that looked far too small for her enviable assets 

That won't fit you! Busty Noni reached out to touch a teeny tiny bikini bra that looked far too small for her enviable assets 

Happy to help: The ombre-haired babe, who is also a swimwear designer, struck a pose next to some KARAMELEON stock 

Happy to help: The ombre-haired babe, who is also a swimwear designer, struck a pose next to some KARAMELEON stock 

Promotion: Noni had no problem using her star power to promote the rival brand

Promotion: Noni had no problem using her star power to promote the rival brand

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