(Cover) - EN Showbiz - Jennifer Lopez is reportedly cooling off her relationship with Bradley Cooper.

The Hollywood pair have been seen several times together in recent weeks.

Life & Style magazine claims that although Jennifer likes Bradley she has some reservations about completely committing to him.

Bradley is often viewed as a playboy having been linked to stars such as Rene Zellweger, Cameron Diaz, Scarlett Johansson and Jennifer Aniston.

"He's always into someone new," a source told the publication. "He likes to keep his options open."

Jennifer split from her third husband Marc Anthony earlier this year. With a string of high-profile relationships behind her, Jennifer is determined not to make the same mistakes again.

Some Hollywood insiders have also claimed that Bradley isn't interested in a serious relationship because he wants to focus on his career.

"Bradley is all about Bradley," claims a source who worked with the actor. "He's very driven and ambitious."

Jennifer recently revealed she will not discuss her private life until she is in a serious relationship again. The star has vowed to protect her three-year-old twins Max and Emme.

"They're my first priority," Jennifer said. "Because of them, I wouldn't ever comment until I'm in a serious relationship again. It would just be confusing for them, and it would be unfair. And at the end of the day, it's about them." (C) Cover Media