AN LA based pornstar has shared an insight into what really happens at A-list Hollywood parties.

Hayley Davies, 25, moved from Australia to LA last year to pursue a career in the adult industry.

In just six months, she has filmed over 300 tapes, leading her to be given the nickname the "hardest working pornstar."

In her glamorous new life, she often parties with Hollywood celebrities, and has given the inside scoop on what really goes on behind closed doors.

"The most unexpected thing is how open they are about sex," she said.

"People are hooking up everywhere -- on beds, on balconies, just right in front of everyone.

"Sometimes they even set up cameras to stream it live onto big screens."

"I've definitely noticed some really big stars and influential people involved in orgies.

"Some might have groupies following them around who they sleep with, or they book private rooms and take turns with different girls."

Hayley is able to attend these parties due to the connections she had built through her carerr.

Her close friend Ryan Pownall, who hosts sex and relationship podcast Pillow Talk, often hosts these parties.

Hayley revealed that she got a real culture shock after moving to the US and being thrown into her new life.

"It's a very different culture the way Americans interact with each other," she said.

"It's a lot more about how much money you make and who you know.

"I've found it quite different to how it is in Australia."

"At one of these parties, this guy came up to me and started chatting me up. I told him my name, but when I didn't ask for his, he was shocked.

"He told me had never been rejected before. He was attractive, but I was with a friend, so I told him I wasn't interested.

"He couldn't believe I didn't want to talk to him -- he kept telling me to Google him."

Hayley added that the sex parties she attends are not a free for all, and often have strict sets of rules.

"I went to one sex party in the Hollywood Hills where they actually did a full presentation on boundaries and rules," she said.

"It felt like a business meeting - but with our clothes off."

"There's a lot of people smoking weed, doing mushrooms, snorting all sorts of things, but I tend to keep my wits about me since I don't drink or do drugs."

She added that some of these parties often cost extortionate amounts of money to attend,

She said: "Some people will throw parties, and if you're not in their private circle, you have to pay.

"Tables can go for $10,000, sometimes even $20,000 (USD), and people actually buy them."

And one rule attendees must always follow is to never take photographs of the parties.

"If you get caught taking pictures, you're blacklisted from these parties", she said.