Lily Collins and boyfriend Jamie Campbell Bower were spotted in Philadelphia on Friday making their way into the "Good Day" morning show to promote their new film "Mortal Instruments: City of Bones."

The two have not been shy about their romance and even coyly flirted during their interview by paying each other various compliments.

On her arrival to the morning show Phil Collins' 24-year old daughter turned heads as she rocked black thigh-high Christian Louboutin stiletto boots with shorts and a sheer shirt.

The sexy red shirt revealed her black bra underneath with her boots showing a tiny peek at the actress' clearly toned legs.

[To see photos of Lily Collins and Jamie Campbell Bower click HERE]

Collins wore a dark red lipstick along with her signature thick, darkened eyebrows, which complimented the look and completed the boldness of her ensemble perfectly, according to the Daily Mail.

The "Abduction" actress put her brunette hair into an updo with a detailed braid that wrapped around her head, adding a chic yet mature appearance to her sensual look.

Meanwhile her boyfriend kept it more casual, dressing down in grey jeans, a black tank and a skull-print scarf. The 24-year-old "Twilight" actor accessorized with a nose ring and a pair of black biker boots.

The morning show's host, Mike Jerrick, complimented Collins on how stunning she looked and started an all-out compliment fest.

Bower gushed about how talented Collins was and said, "I'd forget that I was meant to be speaking."

She later gave Bower a compliment back crediting him with her portrayal of her film character, saying, "The only reason my Clary turned out the way that she did was because you were the Jace that you were."

The actor then said to his girlfriend.  "Stop it, or I'm going to have a little cry!"

The Daily Mail reported that in Lily Collins' interview with Seventeen magazine, she explained her decision to "ignore the public's prying to pursue a normal courtship."

She said, "We've made a conscious decision to go out and live life. I'm not one to hide anything, but I don't feel the need to comment directly on it ... I think it would be a shame to not live in the moment and not enjoy everything that's happening in fear of other people's opinions."

"Mortal Instruments: City of Bones" is set to hit theaters August 21st.