Jennifer Lopez 'very flirty' with Maksim Chmerkovskiy

Jennifer Lopez and Maksim Chmerkovskiy enjoyed a ''very flirty'' night out on Saturday (21.06.14), but friends insist they haven't started dating yet.

The 'Dancing With the Stars' performer was spotted celebrating with the 'Booty' hitmaker - who recently ended her relationship with 27-year-old dancer Casper Smart after two-and-a-half-years of dating - at Shrine nightclub in Ledyard, Connecticut after her concert at the Foxwoods Resort Casino.

An eyewitness told UsMagazine.com: ''Maks was whispering into her ear and hugging her. They looked very flirty with each other...She had a huge smile on her face and looked like she was having a great time.'' The duo recently denied they're dating, but the 34-year-old dancer remained by the 44-year-old beauty's side for most of the night.

The source said they held hands, talked and shared a long hug at the end of the night and before they left separately with different friends. The 'First Love' singer danced with Maksim - who previously dated Kate Upton - at the American Music Awards last November and they were ''inseparable'' at his brother Val's birthday party in Los Angeles in March.

But a source close to Jennifer - who has six-year-old twins Max and Emme with ex-husband Marc Anthony - insisted she and Maksim are still just friends for the moment. The insider said: ''They are friends. She doesn't have a second to date anyone right now, and it is definitely not romantic with Maksim.''