Hilary Duff Sits on Hot Costar Nico Tortorella’s Lap While Partying in NYC

Here we are.. @lowenban @oliviaivey @nicotortorella @jleiweke @jamestownrivial was a pretty epic #dance party

A photo posted by Hilary Duff (@hilaryduff) on Nov 11, 2014 at 9:38pm PST

Party's here! Hilary Duff enjoyed a night out in NYC on Monday, Nov. 10, dancing the night away at the Bowery Ballroom during a concert.

The actress, 27, shared a photo from the venue alongside her friends, where she was seated on the lap of her Younger costar Nico Tortorella. "Here we are.." Duff wrote, tagging her pals. "Was a pretty epic #dance party." The singer was at the famed venue for up-and-coming Americana act Jamestown Revival's sold-out show on Monday evening.

In the pic, Duff beams in a sexy silk and lace camisole and skinny jeans, while Tortorella's arms are wrapped around her waist. A source tells Us Weekly that the handsome actor, 26, was "all over" Duff throughout the concert.

Duff's latest Instagram update comes several weeks after she attended — and held hands — with her estranged husband Mike Comrie at the Casamigos Halloween party on Oct. 24. The spouses announced they were separating this past January after three years of marriage, though they have since attempted to sort things out.

"I mean, if there wasn't a chance for getting back [together], I think we would've filed for divorce," Duff told The Kyle and Jackie O Show in September. Duff told Us in a separate interview in May that she and Comrie, parents to 2-year-old Luca, were "not in a rush for anything."

She added, "We're just trying to enjoy our lives and figure out what makes us happy, and it's working for us."

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