MANILA – Fans of Kim Chiu and Gerald Anderson rejoiced when they learned that the two are reuniting for a television series this year.

In “Ikaw Lang Ang Iibigin,” the two play triathletes as they show off how they have matured as actors in the years that they weren’t together on screen.

In preparation for their TV comeback, Anderson and Chiu have been relentlessly training – involving a lot of running and cycling.

No wonder both celebrities have achieved perfectly toned bodies.

Watch what went behind Anderson and Chiu's photo shoot for Metro Magazine's Body Issue in this video.