Lindsay Lohan "made out" with her female DJ best friend in front of Japanese clubbers, it has been reported.

The 'Mean Girls' star is said to have enjoyed a passionate lesbian embrace with Samantha Ronson in a Tokyo nightclub.

An insider told America's Star magazine: "They just started making out right there like they didn't care who saw them.

"Everyone knows they are more than just friends. They are lovers. Maybe because they were across the globe they didn't think anyone would notice."

Lohan allegedly gets together with 29-year-old Ronson whenever she is single.

The source claims the actress once said: "If I'm not with a guy we hook up."

Reports of 20-year-old Lohan's supposed lesbian leanings surfaced earlier this month when former publicist Jonathan Jaxson claimed she was "tired of boys" and had decided to "spice up" her love life with Ronson on his personal blog.

Lohan and Ronson first met three years ago in a Los Angeles nightclub. Her representatives have denied the pair are involved in a relationship.

The young Hollywood star recently pulled out of starring in new movie 'The Best Time of Our Lives', which follows the life of Welsh poet Dylan Thomas. Lohan's role would have involved a steamy threesome with British beauty Keira Knightley.