Lindsay & Samantha Spin The Night Away

By Aileen Wong

07/18/2008 at 02:55 PM EDT

On the heels of reports that Samantha Ronson recently changed her Facebook relationship status to "in a relationship," she and Lindsay Lohan stepped out in New York City in coordinated fedoras on Thursday.

At the Sephora Celebrates Ten Years of Glamorous event, the pair kept mum, but Lohan's mom Dina gushed about Ronson.

"I love Samantha," Dina Lohan told reporters. "She's like a child to me. They're great friends and as long as my daughter is happy and healthy, it is what it is."

Ronson, wearing her usual skinny jeans and shirt, spun a mix of '80s tunes and current hits throughout the night, and Lohan, in a slinky multi-colored sequined dress, jammed alongside her.

Lohan spent the evening, drink-free, texting friends on her phone, playing with Ronson's deejay equipment and posing for pictures.

At midnight, the two left together, holding hands.