Legendary adult star Lisa Ann who shot to fame parodying former Alaska Governor Sarah Palin stuns in plunging jumpsuit at Sexpo in Melbourne

She became the biggest adult entertainer in the world after starring in a 2008 porn parody based on former Alaska Governor Sarah Palin's ill-fated vice-presidential run.

So it's no surprise that Lisa Ann looked every inch the superstar as she swanned around the X-rated Sexpo convention in Melbourne on Friday.

The 51-year-old looked years younger than her age as she flaunted her voluptuous figure in a  plunging royal blue jumpsuit.

Lisa posed for photos with a handful of Australia's top OnlyFans stars, including Kayla East.

She also cosied up to controversial AFL legend Warwick Capper, who once famously starred in his own adult film with an ex-girlfriend.

Adult entertainer Lisa Ann looked every inch the superstar as she swanned around the X-rated Sexpo convention in Melbourne on Friday

Adult entertainer Lisa Ann looked every inch the superstar as she swanned around the X-rated Sexpo convention in Melbourne on Friday

Lisa joined the adult industry in the '90s, but it wasn't until 2008 when she portrayed Sarah Palin in Who's Nailin' Paylin? that she became a household name.

The sprawling smut epic saw Lisa play Palin throughout various stages of her life, from college through to her time as the governor of Alaska and eventually Palin's entry into the 2008 U.S. presidential election. 

It was so popular that it spawned a sequel titled Obama is Nailin' Palin? and an interactive DVD called You're Nailin' Palin.

The film sparked the ire of American conservatives, including former Fox News host Megyn Kelly, who raged at the time, 'Your average American — it's offensive, it's disgusting it's dirty — they wouldn't want to see it.'

Lisa became the biggest adult entertainer in the world after starring in a 2008 porn parody based on former Alaska Governor Sarah Palin's ill-fated vice-presidential run

Lisa became the biggest adult entertainer in the world after starring in a 2008 porn parody based on former Alaska Governor Sarah Palin's ill-fated vice-presidential run

The 51-year-old looked years younger than her age as she flaunted her voluptuous figure in a plunging royal blue jumpsuit

The 51-year-old looked years younger than her age as she flaunted her voluptuous figure in a plunging royal blue jumpsuit

Lisa posed for photos with a handful of Australia's top OnlyFans stars, including Kayla East
She also cosied up to controversial AFL legend Warwick Capper, who once famously starred in his own adult film with an ex-girlfriend

Lisa posed for photos with a handful of Australia's top OnlyFans stars, including Kayla East (left) and Warwick Capper

Palin was tapped to be late Senator John McCain's running mate on the 2008 GOP presidential ticket, thrusting both herself and her family into the public eye.

Despite failing to enter the White House, the genetically-blessed Alaskan found plenty of success in the spotlight.

In 2010, she starred in the short-lived TLC reality series Sarah Palin's Alaska, which brought in record ratings for the network when it premiered to five million viewers.

She also released a best-selling memoir called Going Rogue, which sold close to three million copies. 

Palin was tapped to be late Senator John McCain's running mate on the 2008 GOP presidential ticket, thrusting both herself and her family into the public eye

Palin was tapped to be late Senator John McCain's running mate on the 2008 GOP presidential ticket, thrusting both herself and her family into the public eye

Last year, Sarah attempted to stage a political comeback by making a bid for Alaska's only U.S. House seat - but lost to a Democrat

Last year, Sarah attempted to stage a political comeback by making a bid for Alaska's only U.S. House seat - but lost to a Democrat 

Palin went on to release more books over the years, including a biblical tome of devotionals and a book about protecting Christmas. 

Her daughter Bristol also shot to fame and starred in several reality shows, including Teen Mom OG and Dancing with the Stars.

Last year, Sarah attempted to stage a political comeback by making a bid for Alaska's only U.S. House seat.

However, she lost to Democrat Mary Peltola - the first Alaska Native to serve in the House, and the first woman to hold the seat.