Greet her openly.

You stand from your hiding place, and she starts, hand grasping for her sword. Just as you are beginning to think revealing yourself was a bad idea, she relaxes, her hand falling from her blade.

"You know," She calls, dismounting and walking over to you. "I had forgotten how big you are."

"I find that difficult to believe" You reply, as she draws near.

"Well you-ooh!" she begins, but she is cut off when you quickly stoop down, wrap one arm around her legs, and throw her over your massive shoulder.

That done, you turn on your heel and carry her toward the mansion doors.