A 29-year-old woman is facing prostitution charges after she allegedly took breaks from her job at a New Jersey Dunkin' Donuts to provide sex in exchange for money.

Rockaway Township police began an investigation called "Operation Extra Sugar" after receiving a tip about the worker's questionable activities at the shop where customers could arrange a liaison with the woman.

The woman, Melissa Redmond of Mine Hill, N.J. was arrested after the six-week sting.

"I had gotten an anonymous tip," Detective Sgt. Kyle Schwarzmann, who led the investigation, told the Daily Record. "She was a night time employee (working 9 p.m. to 5 a.m.), supposedly a very good one.''

While observing the Route 46 Dunkin Donuts' store during Redmond's shift, Schwarzmann noticed she had a pattern of visiting customers for ten or 15 minutes at a time in their cars.

"Sometimes I'd even see money changing hands," Schwarzmann said, adding that sometimes the cars would remain in the parking lot while other times they would drive elsewhere.

An undercover operation was developed with the assistance of Officer Robert Koehler and Officer Scott Haigh acting as the undercover "John."

"He went in plain clothes through the drive-thru window,'' Schwarzmann said. "He spoke to her and she said if he wanted a good time to call her and she gave him her phone number."

Haigh parked the car in the Dunkin' Donuts' parking lot and Redmond allegedly came out, approached him and gave him a specific price list for her services.

When he returned a second time -- and was offered new, lower prices -- he said he needed to go to the bank and returned to make the arrest.

Redmond was processed, served her complaint, and released.

No one at the Dunkin Donuts wanted to comment Monday morning.