She stopped dead in her tracks and scanned the store through the shelves. I slowly stripped my t shirt off, let it drop to the floor and started walki...g towards her. She stared frozen in the headlights of my gaze, so I delicately picked her hands up in mine and led her back towards the rope. Her palms were sweaty. So were mine. My cock was stiffening.I looked into her pretty eyes, unclasped her hands and lightly brushed her eyelids down. My obedient girl closed her eyes, and smiled. I wanted to. . but go over into the corner, I do not want to watch.And then you have an appointment with some bolt cutters..." Yes Mistress, thank you Mistress," I respond meekly accepting thebottle, before scurrying off to the corner and raising my skirt andlowering my panties. I.. I know she's watching me from behind and I'm soembarrassed that.. I.. I can't pee at first, then even more embarrassedwhen I slowly start to fill the bottle."So bitch, are you ready for tonight?" Mistress asks as I pee."N.. no. But the sight, almost in slow motion, of her ass giving to the force of my hand, and then watching it spring back up with a shake and shimmy to return to it’s prior location, made me want more. I picked up the pace and deliver four quick and loud slaps to the same cheek. Each slap caught her butt flesh in both a slightly different position, and a different phase of the rebound. Mindy squirmed and grunted at this. But, I was just getting started.Slap! Slap! Slap! Slap! Went four more rapid. Her face covered with Rhiannon’s now dry pussy juice. I untied her hands then her legs as I helped her up off the bed. When she stood up and little trickle of more blood and semen ran out of her and down her leg.Rhiannon had already untied Lauren and had her standing up as she ripped off her shirt and unbuttoned her jeans and slid them down, revealing that Lauren as well was not wearing any panties. Her pussy was glistening a little, so I guess it must’ve excited her.I proceeded to tie Katie.