Miss Prince clutched Cassie's violently bucking hips as she fucked the sobbing coed's slurping snatch with a long, stiff, black rubber dildo.
Diana's white blouse was unbuttoned and her bronze tanned tits bounced within the cradle of the tall brunette's lacy black bra as she grunted every time she thrust with the strap on she wore between Cassie's luscious alabaster buttocks.
Cassie was tied down over Diana's desk, her wrists bound with ropes that were tied to two of the large desk's legs. Cassie's slender legs were spread eagled, her skirt and panties discarded nearby as her teacher spanked her bobbing left buttock while reaching over with her free hand for a handful of Cassie's sweaty blonde hair.
"Tell me you love it, bitch!"
"I love it!" cried Cassie, blinking tears from her blue eyes as her lascivious teacher plowed harder between her student's glistening labia lips up into the coed's contracting vagina.
"You've got a tight little twat, whore," purred Diana, azure eyes smoldering as she raked the nails of her left hand across Cassie's glowing, cherry red left sweetcheek.
Diana gave the bound, prone schoolgirl's shoulder length blonde hair a tug with her right hand while she dipped her left between her student's splayed apart legs to fondle Cassie's puffy, dripping wet pussy.
Cassie's sore snatch clenched around the thick rubber rod pumping repeatedly through her slurping slit. Cassie lifted her flushed face from the desktop as she rocked up against the teacher's desk, taking Miss Prince's strap on faster and faster through her sucking sex until the coed's throbbing teen twat climaxed and drenched Diana's dildo with dripping, musky sweet spunk.
Grabbing hold of both of Cassie's bare shoulders, Diana continued humping the whimpering coed until she'd achieved her own orgasm and left her quaking thighs streaked with pussy juices.
Diana untied both of Cassie's chaffed, limp wrists, then turned the naked coed around before forcing Cassie to her knees on the classroom floor and stuffing the young blonde's drool drenched pink lips with the cum covered black dildo.
"Suck that filthy cock, slut," sneered Diana, grabbing hold of Cassie's honey blonde haired head and shoving the kneeling teen's tear streaked face into her hairy crotch.
Cassie lifted her hands and pressed them up against both of Diana's parted bronze thighs while she obediently sucked on the teacher's long, gleaming wet strap on. Diana closed her blue eyes blissfully as she thrust the dildo deeper and deeper down Cassie's gulping throat.
After she'd sucked her teacher's strap on clean, Diana reached down to painfully pinch Cassie's saliva streaked chin and lift the coed's flushed face to meet her glittering gaze.
"Tomorrow after your last class, meet me here. I've got a special place I want to show you."
"Yes, Miss Prince," murmured Cassie, before Diana locked lips with her and devoured the moaning coed's delicious mouth.
Cassie's buttocks still burned and her pussy was aching when she met Miss Prince in the dominatrix's classroom. Instead of fucking Cassie in the classroom like they'd been doing all week, Diana took the petite blonde's right hand and guided Cassie out of the classroom and down the campus hallway.
Cassie followed Diana down several sets of stairs, until they came to an unmarked door that Diana had to unlock before entering.
"Where are we?" asked Cassie nervously, even as her nipples poked through her uniform blouse and her clit twitched inside her white cotton panties.
"The boiler room," replied Diana, looming over Cassie as she shoved the coed into the dimly lit school basement.
The boiler that heated all the water for the campus building thrummed like some giant monster's heart as Diana flicked on a single dangling light bulb.
"Strip."
"Yes, Miss Prince," replied Cassie reflexively, reaching for her collar to loosen her tie before she unbuttoned the front of her shirt and removed it. Cassie didn't wear a bra under her shirt, Miss Prince had ordered her to stop wearing her training bras to school.
Cassie wiggled out of her plaid skirt next, then slipped off her panties.
"You can leave your tube socks and sneakers on. Come over here."
Dressed only in her white knee socks and shoes, Cassie blushed as she walked across the hot boiler room to where Diana waited. The boiler was radiating so much heat that perspiration was already breaking out across Cassie's milky white skin.
"Raise your arms, but your hands into these leather manacles."
Cassie wondered who had installed the chains and shackles to the boiler room's ceiling. Before Miss Prince had asked her to stay after class one day and proceeded to molest her until now the buxom brunette fucked the coed with a strap on almost every day, Cassie had heard the rumors of teachers fucking certain students that they'd taken a shine to. A few rumors were even whispered that the principal himself had sex with the teachers like Miss Prince as well as some of the nubile teenage student body. Cassie focused on the dangling chains and the waiting empty cuffs as Diana grabbed her limp right hand and placed it inside one of the open leather cuffs before cinching the shackle tightly around Cassie's thin right wrist.
Diana shackled Cassie's upraised left hand, then stood behind the naked coed, running her hands up and down Cassie's sides, from the blonde's swelling breasts to the curvaceous hips of the bound teenage beauty.
"You getting horny yet," bitch?" purred Diana in Cassie's right ear, reaching round to squeeze both of the coed's sweat slick tits.
Cassie merely whimpered while Diana pinched her pink nipples to hardness, then Miss Prince slid her right hand across Cassie's shuddering stomach to the shackled coed's crotch.
"Mmm, so warm and wet," sighed Diana, nibbling on Cassie's right ear while she scratched at the teen's puckered vulva, then rolled Cassie's engorged clitoris between her tapered fingertips.
"Uhhhhh," moaned Cassie, closing her blue eyes as her teacher fingered her, gently spreading Cassie's damp labia lips before wiggling her index finger up into the naked blonde's juicy, hot pink hole.
Diana fingered Cassie furiously until the shackled coed's juices were dribbling between her quivering ivory thighs. Miss Prince tugged out the two glistening digits she'd rammed up Cassie's clenching cunt, she licked the young girl's honey from her fingertips, then she stepped back to retrieve something from a nearby table.
Whack! Cassie's eyes grew wide and she screamed when the riding crop lashed across her bare back.
"Scream as loud as you want, whore. No one will here you all the way down here," smirked Diana, licking her ruby lips before she snapped the leather riding crop across both of Cassie's taut teen buttocks.
The crop burned a long red welt over both of Cassie's shivering sweetcheeks. Diana hefted the crop again and whacked it across Cassie's back again, adding a second crimson line to cross the first one marring Cassie's soft skin.
Cassie hung by her shackled wrists and shrieked at the top of her lungs as Diana mercilessly flogged her bare back and buttocks with the stinging leather riding crop. After twenty strokes, Cassie's sweaty back and quivering ass were covered in crossing ruby welts, the backs of Cassie's splayed thighs were also adorned with throbbing red welts.
Cassie dangled by her limp, shackled wrists. Cassie's drooling mouth was slack, strings of saliva dripped off the naked, flogged coed's chin to splash across Cassie's pair of heaving, beading breasts.
Cum gushed out of Cassie's inflamed twat. Warm, musky nectar ran down both of Cassie's slack thighs, soaked up into the blonde girl's knee high tube socks.
Cassie didn't resist or make a sound when Diana spread apart her battered buttocks and pressed the hard black knob of the strap on dildo against the chained, naked, flogged schoolgirl's pouty pink asshole.
Cassie whimpered weakly when Diana slowly pushed the thick rubber dildo through her yielding sphincter up into the shackled blonde's virgin rectum.
"Tell me you love it up your butt, slut," whispered Diana huskily into Cassie's left ear as she wrapped her arms around her student's skinny waist and started humping Cassie's tender rectum.
"I love it up my butt, Miss Prince," sobbed Cassie, tears burning in her dull blue eyes as she hung by her manacled wrists while Diana roughly reamed the welt covered coed's bucking bottom.
"That's my girl," smiled Diana, darting her tongue into the blonde girl's ear while she cupped and fondled both of Cassie's pliant teenage tits, all the while ramming her strap on harder and harder up Cassie's sore bung till the butt fucking brunette reached Cassie's clenching colon.