The 'Mean Girls' actress - who is rumoured to be in a lesbian relationship with DJ Samantha Ronson - dated model Calum Best last year and friends say he is desperate to rekindle their relationship.

A source close to Calum - who is in Los Angeles to film his new reality TV show 'Calum: The Best Is Yet To Come', which sees the renowned womaniser try to stay celibate for 50 days - said: "Calum can't wait to see Lindsay - whenever they meet they always seem to get on."

Lindsay is also believed to be keen to meet Calum - who is the son of late soccer legend George Best - as she still has a soft spot for him.

The source added: "Lindsay couldn't get enough of his bedroom antics."

Last year, it was claimed Calum had dumped Lindsay because he didn't like her being sober, following her stint in rehab for drink and drug addiction.

A source said at the time: "Calum called Lindsay and said he was finding her post-rehab existence dull and that he didn't want to give up partying.

"He loves Lindsay but he's simply not in the same place anymore."