The same day that Lily Collins' and Jamie Campbell Bower's split was announced the actor was spotted with his "The Twilight Saga: Breaking Dawn- Part 1" co-star Ashley Greene. The pair were seen leaving the gym together with big smiles on their faces.

On Thursday in Los Angeles the 24-year old "The Mortal Instruments: City of Bones" star and 26-year old Greene were strolling down the street after an intense work out.

As the two walked close by to one another it seemed as if their friendship may have blossomed into something more, according to the Daily Mail.

Campbell Bower wore a black skull-printed tank top with the sides cut out paired with black shorts, dark grey sneakers with red laces, a backwards baseball cap, and dark sunglasses.

[For photos of Ashley Greene and Jamie Campbell Bower together click HERE]

Meanwhile the "Twilight" star wore a clingy peach colored T-shirt with black capris, and dark grey and blue sneakers. The actress pulled her hair back into a bun and hid her face behind purple framed sunglasses.

She walked close to Campbell Bower with rosy cheeks most likely from her workout as she clutched her cold water.

Lily Collins and Jamie Campbell Bower are currently in the midst of promoting their new movie "The Mortal Instruments: City of Bones," which may now prove to be quite awkward seeing as they have just broken up and the actor has already been spotted with another female.

The pair were first romantically linked to one another last year in July but according to insiders they have quietly ended their relationship.

A source told Us Weekly, "They remain very good friends."

"They've been really good about doing the press tour together for their movie," an insider explained that "They were able to stay friendly."

"The Mortal Instruments: City of Bones" is set for an August 21st release date.

Do you think Jamie Campbell Bower and Ashley Greene are hooking up following his split from Lily Collins? Leave us your comment below.