Fluttershy was a mess. She knew that much. Her hair was disheveled, her fur matted with sweat and marecum, her eyes glazed, her legs trembling. She smelled like sex, and nothing else. But her lover didn't care how messy she looked like.

Rex nuzzled gently against her shivering form. The touch was meant to be comforting. It was meant to tell her that everything was okay. Her needy marehood quivered at the close proximity of an able mate.

The horny pegasus mashed her muzzle against his, hoping the animal to understand and return the show of affection. While he did understand, instead of kissing he licked across Fluttershy's muzzle, then her face, then her neck.

The poor mare winked at the feeling, and a small spurt of her juices squirted on the floor. She couldn't wait anymore. She turned away and let her upper body fall to the floor as she pushed her rump in the air.

“Please, Rex,” she whimpered. “Take me.”

Instead of mounting her however, the canine instead pushed his nose in to her drenched sex, making her gasp. His wet button nose felt almost cold against her burning cunt. She felt him sniffing her backside, filling his lungs with the scent of a female ready to mate.

A broken moan echoed in the night as his large tongue dragged over her sensitive clitoris. Her head fell on the floor, her cheek soon soaked in her own drool. Just the thought of mating with the animal was enough to make Fluttershy a broken mess, and now his tongue was inside her. It didn't take much longer for her to reach her first climax with him.

Her eyes rolled up as a strangled cry broke from her mouth, and Rex was soon covered in her orgasm. He quickly retreated, as her entire body quivered from satisfaction. Her legs trembled, and the only thing keeping her hind in air was the instinct of a female in need. She would not be satisfied until she had felt him inside her.

Rex shook his head wildly, sending drops of marecum flying to the floor and the walls. Fluttershy was left panting in exhaustion. Despite the fact that her marehood still screamed for gratification, she did enjoy the small breather, before the powerful male ruts her to the ground.

And then she felt his weight above her. The thick fur of his stomach on her back, his paws pushing her shoulders down, his hot breath on the side of her face. And on top of it all, she felt his rigid shaft press between her buttocks, and the hot pre staining her fur.

She gasped as he humped, pressing the tapered head against her perineum. He lined his shot again, and missed, pressing against her furiously winking clitoris. Fluttershy bit her lip and groaned as the animal ground his pecker against her sensitive button.

He tried a third time, missing by less than an inch, making her whine. She needed it now.

With a little effort, she managed to move her forelegs under her stomach. A gentle hoof guided the throbbing cock slightly to the side, and Rex slammed his hips forward eagerly.

Fluttershy's mouth opened in a silent scream, her eyes bulged and her pupils shrank into pinpricks, as the entirety of the impressively sized cock speared her tender insides. A bouquet of feelings exploded inside both her body and her mind. She bit her lip, almost painfully, her eyes crossed and a loud whimper echoed in the night as she came again.

Rex had the courtesy to stay put as his caretakers insides pulsed around him. Fluttershy rode the high of her orgasm for a while, spraying more of her marejuices on her lover and the floor below them.

When the haze around her mind finally calmed, she could focus on the feelings. The girth stretching her insides and the head putting pressure on her depths she was already familiar with from her toying, even if the shape was different. But the heat, the throbbing, the feeling of his loins against her rear and his balls resting on her clit.

The feeling of a living lover. She sighed happily at the feeling.

A soft whimper from her side brought her back. She looked to the left and locked eyes with Rex. He was questioning her with his look, asking if he could continue. Her mouth turned in to a wavering smile, touched by his gentleness.

“Rut me.”

Rex woofed and complied.

She felt his hips pulling back, his burning length retreating out of her, until only the tip stayed inside. She knew it had to happen, but couldn't help her insides instinctually grabbing onto him, reluctant to let him leave.

And then he slammed back in, making her squeal as all the feelings from before came back tenfold like a lightning strike. She was sore, from her earlier session as well as the multiple orgasms, but the pleasure overwhelmed the numbness and the pain.

As he pulled out again, she felt her insides squeezing him even more than before, desperate to keep the pleasure giving rod inside. Once again, he stopped when just his tip was inside, before throwing his hips forward again. Fluttershy's mind exploded in yet another fireworks display of pleasure as she felt his slowly swelling knot pushing against her g-spot.

It took one more full thrust before Rex sped his rhythm, only pulling out halfway. Enough for the half swollen knot to pop out with a wet sound, before forcing it back in, making her heart flutter at the feeling. With every thrust his knot rubbed her pleasure button, and his balls slapped against her winking clit.

As his thrusts became faster and more bestial, she was able to think less and less. Her mind was too gone to appreciate the feelings, instead she surrendered to the pleasure that slowly but surely pushed her closer to climax.

And then came the moment he had to pump hard against her rear to force the swollen knot inside. And it was not coming back out. Fluttershy made sure of that, moaning and groaning as her insides squeezed him like a vice.

Despite this, Rex kept up a rhythm, humping her as much as possible. The knot kept grinding against her sensitive g-spot, and the pre-cum drooling head kept bumping against the depths of her marehood.

Rex snarled at the feeling of her insides milking his shaft, and then finally he came. Fluttershy felt the great throb of his length, before spurt after spurt of thick virile cum flooded her insides.

The pressure of the knot inside her, as well as the hot flood of seed, brought her to her peak yet again. She screamed as she had the fullest, most perfect orgasm of her life. Rex howled as her spasming insides stroked his sensitive shaft.

With the end of her climax, all strength left Fluttershy, and her body fell limp. She was surprised when she didn't fall to the floor though, instead there was a strange pulling sensation in her pussy. Rex was in no way unsettled by her weight, holding her hind up with his knot.

He tried to move to his sleeping spot, but stopped immediately when the pony cried out to him.

“I'm sorry, Rex,” she sighed. “Please don't move yet. Wait until I can get off.”

It took several minutes before the knot had subsided enough for the exhausted pegasus to fall to the floor. As her stomach made contact with the wood floor, a viscous mixture of their cum squirted out of her.

She should have gotten up and made her way back to the house and to bed. Instead she curled in to a ball, and closed her eyes. She was far too exhausted to move.

Rex was about to make his way to his favourite spot, but when he noticed his caretaker going to sleep, seemed to change his mind. Instead he made his way to her side and laid down next to her. She gave a content sigh at the warmth next to her.

“Thank you, Rex,” she whispered. “Good boy.”

Author's Note

Please, do leave a comment. Constructive criticism helps me write better, and any kind of positive feedback makes me feel better about the fact that I spend my time writing pony porn...