You

You think about it and decide you should go first so you don't put her off the game immediately.
"I'll go first. Just let me change clothes first. Why don't you untangle these ropes and think about how to to tie me while you wait". With that you run off to your room and change. You put on opaque tights and a dark blue leotard. You find your black shoulder length satin gloves that where a part of your Halloween costume and put them on as well and with a pair of high heels you finishing the look. Before you leave you look at yourself in the mirror, satisfied with the look you go down back to the living room.

As you enter you strike a glamorous pose and say in an announcers voice "Behold! The Great Karen! The best escape artist in the whole world! No rope or chain can hold her!" Amy laughs as she looks at you"Ha ha. Awesome costume Karen. Maybe you could go as that this Halloween" You put on a smirk and give her an indifferent look and scoff "Maybe? We'll see." not changing your stance. Now she gets a big smile and points a finger at you saying "Well prepare to go down Karen The Great! There is no way your getting out of my knots! For I am the Amazing Amy!". You both stare at each other trying to hold in your laugh but it doesn't last long as you both start laughing hysterically. As you finally stop giggling she says to you "Great outfit. You really do look like a magician."
"Thanks. That was what i was going for" you get to the center of the room and see that she sorted all of the stuff in neat piles over the floor leaving a clear patch in the middle of the room in front of the sofa. You look it over and stand on the clear patch. Looking at her you says "Well. Do your worst Amazing Amy." and you turn your back on her and cross your wrists behind your back. Looking over your shoulder you see her pick up a coil of rope and stand behind you.
"Oh I will Karen The Great. Prepare to meet your doom."