In a swamp far, far away, Shrek, Fiona, and Donkey were enjoying an intimate evening together in their humble abode. The air was thick with tension as Shrek sipped on his swamp juice, Fiona fiddled nervously with her dress, and Donkey nibbled on a carrot, all eyes fixed on the large, ornate chest that had recently been delivered to them.

Shrek grunted with anticipation and heaved it open, revealing an array of leather restraints, whips, and blindfolds. A wicked grin spread across his face as he turned to Fiona, who was blushing furiously. "I think it's time we all try something new," Shrek growled, and the heat in the room intensified.

Fiona hesitated for a moment before nodding hesitantly, her curiosity piqued despite her apprehension. Donkey's eyes lit up with excitement as he realized what was about to unfold. The three of them had always been close, but this would push their boundaries in ways they never imagined possible.

Shrek grabbed Fiona roughly by the arm and guided her to a large wooden table. He forced her down onto it, the wood creaking under her weight, before securing her wrists with cold steel cuffs. Her breasts heaved as she struggled against her bonds, her green eyes pleading with him for mercy.

Shrek then turned his attention to Donkey, who was quivering in anticipation. He wrapped a leash around the donkey's neck and tugged him forward, making him kneel between Fiona's spread legs. "You're going to fuck her hard," Shrek growled, "and I want to hear every whimper from her lips."

Donkey licked his lips, eager to please, as he positioned himself at Fiona's entrance. Fiona cried out in protest but couldn't stop herself from moaning as Donkey began thrusting into her. Shrek grabbed a leather flogger and trailed it along Fiona's sensitive skin, watching as she writhed beneath him.

As the rhythm of Donkey's thrusts grew more intense, Shrek decided he couldn't wait any longer to join in on the action. He pulled his pants down, revealing his thick erection, and positioned himself behind Donkey. "Now it's my turn," he growled, pushing his way inside Fiona as Donkey continued to pound into her from the front.

Fiona's cries of pain and pleasure mingled in the air, echoing off the walls of their humble abode. Shrek and Donkey moved in perfect sync, raping Fiona with unrelenting force. Her body bucked wildly beneath them, her moans growing louder as they pushed her closer to the edge.

Shrek pulled out a large dildo and shoved it into Fiona's mouth, gagging her while she continued to take both of their cocks. Her eyes watered, but her body quivered with desire as she realized how close she was to climaxing.

Unable to hold back any longer, Shrek and Donkey roared out in unison, filling Fiona with their seed. The sound of their release was punctuated by the slap of flesh against flesh, a symphony of carnal pleasure that rang through the night. Fiona's body convulsed as her orgasm ripped through her, leaving her completely spent.

The three of them collapsed onto the table, gasping for air and basking in the afterglow. For a moment, they lay there entwined in each other's arms, their breaths mingling as one.

This was just the beginning of their dark exploration into the world of kink and debauchery. Together, Shrek, Fiona, and Donkey would delve deeper into their twisted fantasies, discovering the limits of pleasure and pain that bound them together in this wicked fairy tale.