Is Lindsay Lohan's Ex Romancing Miley Cyrus' Ex?

Lindsay Lohan has sent the rumour mill into overdrive after suggesting her lesbian ex-girlfriend Samantha Ronson spent the night with one of Miley Cyrus' former boyfriends.

The Mean Girls star, who split from the celebrity DJ last year, sparked the gossip after taking to her Twitter.com page in the early hours of Wednesday to blast Ronson for allegedly spitting in her face.

But that's not all Lohan was fuming about - the actress claimed Ronson abandoned her in a club to leave with another man, although she stopped short of naming the mystery male.

She wrote, "tonight @ my friernds bday (birthday) party, @samantharonson spit in my face and left w/ (with) @mileycyrus 's ex."

Gossip bloggers speculate the man in question is model/singer Justin Gaston - although Cyrus has also previously dated Jonas Brothers star Nick Jonas.