Penn Badgley and his new girlfriend Domino Kirke enjoyed a NYC date night in denim shorts on Sunday, July 13. Credit: Adam Nemser/

Date night in jorts! Penn Badgley and his girlfriend Domino Kirke went out for a summer stroll in NYC on Sunday, July 13, both wearing denim shorts.

For the evening walk around Manhattan's West Village, Badgley wore a pair of indigo blue denim shorts cuffed above his kneecaps. The Gossip Girl alum, 27, sported scruff and shades, as well as a clean white T-shirt and matching sneakers.

His lady Kirke (the younger sister of Girls star Jemima Kirke) also stepped out in a pair of tiny stonewash denim shorts. Up top, Kirke, 31, sported a loose-fitting gray tank, which revealed her sleeve tattoos. Clutching a lego set in one hand and holding her tummy with the other, she and Badgley stopped for dinner on a random neighborhood bench.

Kirke, a former singer/songwriter, is currently a professional doula based in Brooklyn.

As exclusively revealed by Us Weekly, both Badgley and Kirke have been an item "for awhile," a source said.

"They have a number of mutual friends. It is a very mature and free relationship," the insider explained. "Domino is a great girl for him, being a musician. Their interests align."