Free Summer School & After School: The Ponygirl Omnibus Edition by Jurgen von Stuka Page A

buttons and Dori responded with a start
and a jump in the saddle as the springs released and the teeth sunk into the
tender pink flesh. Twisting and surging against her bounds, Dori slid once
again up and down on the mounted prongs in her ass and cunt as she tried to
free herself and get the biting little thimble off her swollen nip. Mistress
Wright then seized the right nipple and, despite the girl’s struggling,
proceeded to cap the second target as she had the first. The result was two
metal enclosures over the girl’s alert nipples. Her thrashing struggles soon
subsided as Dori realized that this was just another torment that she could do
nothing about. Her nipples screamed from the sharp-toothed metal clamp inside
the thimbles. The more she shook the more they hurt.
    “All this
unnecessary struggling will get you nowhere, Dori,” said Mistress Wright.
“Perhaps some additional restraint is in order. I must, as usual, take care of
other business, but Margie here will see that these little fleshy towers of
yours are properly restrained while you enjoy your ride. See you later.”
    Mistress Wright
left the cellar. Margie stepped forward and attached twin bungee cords from the
overhead to the little rings on each of the thimbles on Dori’s heaving chest.
With this small addition completed, the instructors again departed the cellar
and left Dori and Samson to their afternoon’s exercise.
    With each jump
and twist, Samson threw his rider to the extent of her bound restrictions. Dori
flew about in the saddle, moving with starts and stops in all six possible
axes. Up, down, forward, backwards, left and right. Not to mention the diagonal
motion! Each move caused stimulating distress. Her nipples were pulled in all
directions, her head pitched back and forth, her body leapt out of the saddle
and the penetrators lodged between her legs slid in and out, building up
friction and sending waves of pleasure/pain throughout her racked body.
    Unlike the
previous session on Samson, this time Dori felt that she was being taken well
beyond the limits of her endurance. The moves were more violent, the pace much
too fast and the duration of the pauses far too short. When Samson stopped to
rest, it was only for seconds instead of minutes. The alternate and combined
waves of discomfort and orgasmic elation began to all run together in Dori’s
jerking head. To her astonishment, when the horse stopped for a moment, she
found her hips continuing to jerk and spasm, riding the imbedded probes even
while the horse was still.
    “Na-guun-naa,
ha-guann-na, na-ggag-GAAA, aaa, ahhhhh, ahhh,” Dori sung and moaned through the
bit and gag. With each thrust the horse flipped her forward or sideways with
greater intensity. Her involuntary oral response was punctuated with a louder
groan as she hit the end of the toss and was jerked back into the saddle, the
internal prongs jamming themselves deeper and bringing a painful “Gnaaa-AH”
from the girl’s open plugged and bitted mouth.
    The bungee cords
on her nipple caps were an additional annoyance. As the horse moved and Dori’s
body followed, her D-cup breasts jumped and flopped about on her chest. There
was a minute delay as each body part responded to the horse’s moves. It was a
long sequence that flowed together and brought continuous stimulation to every
nerve in her pinioned body. Samson jerked up and back. Dori’s torso followed a
millisecond later. Her breasts delayed another split second and her stretched
and fettered nipples, enclosed in their little silver caps, delayed a second
longer. So Dori’s upper body was in full back swing at the very moment her
breasts were just beginning to start to follow. As she began to swing back
forward, her chest mounds were flying backwards, tugging the bungees tight and
pulling the tortured nipples back forwards. Dori was certain that her treasured
tits would eventually give up and simply tear away, but they remained attached
to her chest and only