Lindsay Lohan in the middle of a lesbian tug of war

Actress Lindsay Lohan is at the center of a fight between two Hollywood lesbians desperate for her affections, it has been revealed

28-year-old Courtenay Semel, the daughter of former Yahoo! CEO Terry Semel, who appeared in the E! reality series Filthy Rich Cattle Drive, and DJ Samantha Ronson, are both fighting for the actress' affections.

"Sam and Courtenay fight for Lindsay's attention," an insider tells Star magazine. "Both have told her they love her."

Lindsay and Samantha - whose mom is writer Ann Dexter-Jones and dad is band manager Laurence Ronson - started getting close 2004. And when Lindsay, 21, was in rehab last year, she kept in constant contact with Samantha via her MySpace page.

"Your [sic] all I have to live for babe," the Mean Girls star wrote. "I want to marry you and have children with you. I need you to live!"

Courtenay and Lindsay, meanwhile, were reportedly living together in the Hollywood Hills until a spat sent Courtenay packing. But despite their falling out, Courtenay "can't let go of Lindsay, and she'll do what she can to win her back," the source tells Star.