He must have stepped up behind her while she was watching the report.

She steps up behind him, so close that he can feel her breath on his neck.

A woman stepped up behind the little girl, placing her hand on the girl's shoulder.

I turned in time to see the ghost step up behind us.

Wilson stepped up behind him, blocking the door with his body so the boy couldn't get out.

She stepped up behind him and put a hand on his arm.

Suddenly Sebastian stepped up behind her, so close she could feel the heat of his body.

Mason stepped up behind him without even looking back at the girl, and closed the door.

She stepped up behind me and walked onto the dock.

He then stepped up directly behind the flight controller's forward station.