Porn Valley- Hotel heiress Paris Hilton has allegedly starred in a third amateur sex movie and now plans to make a full length feature for a pornographic studio.

The 23-year-old has been captured on three new 45-minute tapes which feature the most explicit footage yet, reports Britain’s News Of The World newspaper.

“It’s the most explicit stuff Paris has done yet. It’s unquestionably Paris in all three scenes and she seems to be totally enjoying herself in every one,” a source said.

The newspaper also claims Hilton, who is thought to be worth in the millions, is in negotiations with a major American porn studio to make a legitimate blue movie. She is said to be demanding 90 percent of all sales and could stand to make $27 million.