Michelle Williams and Jason Segel move in

Michelle Williams and Jason Segel have taken their relationship to the next level after reportedly moving in together in New York.

The fiercely-private couple was first photographed together in March (12) after enjoying a dinner date near the Brokeback Mountain beauty's home in Brooklyn, and the stars went public with their romance a month later (Apr12) at the Big Apple afterparty for Jason Segel's romantic comedy The Five-Year Engagement.

Now the romance appears to be getting serious after Michelle Williams decided to leave the pad she and her daughter, Matilda, once shared with her tragic ex-fiance Heath Ledger and move in with Jason Segel.

According to the DailyMail.co.uk, the pair has set up home in a sprawling Brooklyn loft apartment, located in a converted warehouse, with stunning views of the Manhattan skyline.

A source tells the publication, "Michelle, Jason and Matilda seem very happy here, the building is beautiful. They've been here a few months now and they look right at home."

Matilda, who turns seven on Sunday (28Sep12), is Michelle Williams' only child with Ledger.

Michelle Williams split from Heath Ledger in 2007, shortly before he died from an accidental drug overdose in January, 2008. She went on to date filmmakers Spike Jonze and Cary Fukunaga before finding love with Jason Segel.