They're inseparable! Boy and his dog mimic each other by rolling in the grass

This is the heartwarming moment Orca the American Staffordshire rolls on the grass with his owner, seven-year-old Alex.

In the clip, filmed on Saturday (May 26) in The Hague, Netherlands, Alex rolls around on the grass in an attempt to lure Orca into doing the same.

He doesn't have to wait very long.

Orca bounds over and rolls onto his back, mimicking Alex by waving its legs in the air.

“They are inseparable and do everything together, (he’s) truly a child’s best friend,” says Alex’s grandfather Ton Creamers.