Sexpo paints a raunchy picture (AAP)

AAP Sexpo, the world's largest adult roadshow has hit Sydney, with hot pants as far as the eye can see.

The sun is shining and a man in a pink top hat is painting portraits with his privates.

It could only be Sexpo.

The world's largest adult roadshow has hit Sydney, with hot pants as far as the eye can see.

Dancing pirates are stripping to Queen's I've Got to Break Free, and punters are lapping it up.

But despite the eye-opening nature of the event, what really hits you about Sexpo is how normal and lovely everyone is.

Kathie Brooke from Brisbane smiles as Pricaso's portrait of her comes together on the canvas.

"What's not to like?" she says.

"Somebody came up to me with one of those vibrating gloves on and just rubbed my back. It was fabulous."

Pricaso works fast, producing a vivid likeness of Ms Brooke before signing his name in purple.

"It's not easy, but I've had a lot of practice," Pricaso, who used to be a builder, explains.

"I've been doing it for 10 years."

But he gets by fine, selling portraits on his website for hundreds of dollars.

Kathie says her Pricaso piece will go in the lounge room.

"I want my Pricaso front and centre," she says.

Sexpo organisers say 20,000 people are employed in the Australian adult industry.

"As the years go by, the industry is becoming less and less taboo as people become more exposed to it and aware," says Sydney stripper Miss Trinity Porter as she and her Sexy Soldiers pack pencil cases and stubby holders into showbags for Friday's show.

Meanwhile, 20-year-old adult dancer Kiki Sucre is waiting for the sun to go down.

She says the Laporium, a non-stop lap and pole dancing corner of Sexpo, picks up after 6pm.

The towering strawberry blonde can make up to $100 a dance.

Sexpo has lured internationally renowned talent this year, including US porn superstars James Deen and Stoya.

Sexpo finishes in Sydney on Sunday.

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