Armbinder Escape Challenge

I kinda pull a fast one with Akira Shell.. I tell her this will be and escape challenge for her.. But then I pull out the tiny leather armbinder and straps.. and before I know it, I've made an inescapeable little predicament for her. She gives it her best struggle, but she realizes by my grin after the first few minutes that I tricked her.. She laughs and continues to struggle. She loves being in tight bondage, so she's not too upset with me.