I feel bad in a way. I've invited her over under the vague promise of some general purpose fun, not letting on that there are some very specific perversions I'm looking to entertain. I want to surprise her.
And she is so willing to be surprised. She happily lifts her head from the bed to allow me to fasten the ball gag in place. Her limbs are pliant and helpful as I join each wrist to an ankle with rope. She must be a little surprised when I flip her onto her front, ass in the air, but she doesn't make a sound. I'm disappointed by this so I use my foot to mash her face further into the mattress until I finally get a yelp.
I can tell she's curious now because her breathing changes when she hears the latex gloves snap on. There's a sharp intake when I spread a small puddle of lube onto her back. It starts to run up towards her neck, so I scoop the drips up with my fingers.