Lindsay Lohan has been labelled a fraud by lesbian activists over her unconfirmed relationship with Samantha Ronson.

The actress has angered members of a gay organisation by hinting at a sapphic romance with her DJ pal but not officially ‘coming out.’

"Celebrities like Lindsay Lohan are merely 'Gay for Play' and are attempting to cash in on the faddish appeal of lesbianism without any commitment to our cause," says Karen Whittaker of The Centre for Sapphic Studies.

"They never seem to move past the hand holding and eye gazing phase of the relationship," adds Alice Hensley.

"There's no sense these two are actually in a commited relationship. If Lindsay would come out and say she's gay and in a commited relationship with Ronson, then maybe she could use her media clout for good for the first time in her life."

The irate group reckons that the Mean Girls actress is giving a bad name to all lesbians fighting for equal pay and rights.

"It's the year of 'I Kissed a Girl' for Lohan and lots of other chicks out there. When Ronson dumps her she'll just pick up the pieces and date a man," says Whittaker.

Lindsay & Sam may or may not have burnt their bras but they're definately missing