You're disappointed to discover that Kristen isn't naturally inclined to playing around with you as a giantess, though you can't necessarily blame her since she did find you sneaking around her room. She has you fairly tightly in her grasp, but you have just enough wiggle room to pull the gun out of your pocket. All that time playing Call of Duty pays off, as you flip the switch to "mind control" and fire it at Kristen before she can react. She's yours.
You're not safe yet, though, as there's nothing stopping her from hurting you anyway. Failing to come up with anything more interesting to order, you scream "DO NOT HURT ME!" She doesn't actually do anything in response, so, just to make sure you're in command here, you tell her to put you on her dresser and put her hands on her head until you give her further instructions. She does, and she stands in front of you, defeated.
That's a relief. For a moment there you thought you were captured. Now, you're free to go do whatever you want. Maybe it's time to go find another girl and see if you can't become her panties for the day, or find something else fun to do. The world is your oyster.
Of course, you also have a giantess slave right in front of you ...