Quite a lot!

Marie's mind was on edge, the orgasm she had just experienced had left her breathless and with her mind in total disarray. The voice of the damn man who had done this to her was coming to her muffled. She tried to regain a moment of clarity now that she had come when something happened that she had not expected! The brush returned with its bristles spreading the fluids of her vagina and if before she felt and perceived them as “stimulating” now there was something that was increasing her pleasure, despite her mind in confusion she was sure that this man was not going faster, it was as if her vagina had become more sensitive. But how was that possible? She had just come! To keep from moaning again she clenched and gritted her teeth.

<< You know Marie -said the painter seeing her stunned expression- it is said, and I have had proof of this during my relations with other women, that after having an orgasm your female organs are more receptive, and therefore more stimulable by procedures like this. Look your pussy is a flood, your clitoris is nicely extended, and you are a little pervert, you came moaning like a little piglet! Now we are going to repeat the experience until you squirt your fluids all over. I promise I will be a good mentor! >>

The brush took to roaming all over the vagina, shedding fluids and caresses in equal measure, Kellerman stopped torturing the nipple and left breast and took to using his other hand to open and close the walls of Marie's vagina thus giving her more stimulation.

<< STOP! OH! AH! NOT...OH! OOOH! UH! >>

<<Marie enjoy in silence -he said laughing at her- otherwise what will the servants of your boss think?>>

Marie didn't understand how it was possible that this treatment, these shameful things could please her so much, was she really as nasty as that creep was saying? << I'm not ... no I'm ... piggy ... >> she only managed to say. At these words Kellerman slid inside her wet and open vagina now like a flower only the first phalanx of his index finger and began to bob up and down with that alone. The contractions in Marie's belly and body really took a surge! << AAAAAAH! >>

Kellerman was delighted that his victim was enjoying, the contrast between her weeping face, **** expression, pussy that was a sea of liquid, and the moans she was letting out were truly a balm to his ears. He then slipped the second phalanx of his index finger in as well and carefully began to bob up and down inside his victim's vagina as the brush proceeded vigorously to stimulate now mostly her clitoris.

Marie was torn in two, her body was fully and autonomously enjoying these perverse attentions, while her brain registered these stimuli, she was trying to wriggle out, to avoid what was happening but she was bound and had no room for movement. Moreover, that finger had really been the switch for her mental blackout. Marie was cracking up. She then tried to bite her cheek to avoid giving satisfaction to her ****, but as the finger penetrated further into her vagina she began to moan uncontrollably. She tried to say something but it was all in vain!