Disposing of the Evidence

Twilight tested the strength of her bonds. It was about noon, meaning they would be here until midnight. Flurry was running her hand over her aunt's shapely arse, squeezing it as she peeled away her panties. "So this is your plan, is it?" asked Twilight, looking to her left, as she couldn't see behind her. "Your last hurrah was to lock me in the stockades and fuck me silly?"

"Originally, no. I was going to make it very intimate, perhaps have mother and father pound you into ecstacy with their dicks while I watched. But then you had the gall to push against me. I had to ask myself, 'What sort of thing can I do to really teach her who is in charge here? What can I do to make sure she never tries a stunt like that again?' Well, you'll soon have your answer. Your last sex with me under this contract will be a punishment for trying to weasel your way out."

A sawhorse was wedged under Twilight's chest and gut, keeping her backside elevated and her genitals exposed to the air. Her skirt came all the way off, and her ankles were secured in place. Lastly, a wide belt was wrapped around her torso, keeping her wings in place. The only substantial movement she still had as an option was her ability to speak.

"So it's to be hardcore BDSM, is it? Fine. Let us proceed."

Flurry burst out laughing. "You misunderstand. This is a punishment, but as I said at the opening of the contract, I'm not trying to cause you harm. A single whipping that's powerful enough to cut your skin, and our contract is null and void in your favour. Why would I risk causing you that level of harm?"

"Then what is my punishment?"

"Humiliation."

"Showing ponies not involved is a violation of the contract, too," reminded Twilight. "And as you said, we're far from anypony."

Flurry stepped in front of Twilight. She had a rather large dick and balls, but the rest of her body was the same. She chuckled as she slapped her cock against the side of Twilight's face. "I don't need anypony else in order to humiliate you, Twilight. I can do that entirely on my own."

"By making me suck you off?" Twilight had a cocky smile. "I've done that several times already." As evidence, she stuck out her tongue and opened her mouth.

"Oh, you'll be sucking me off, alright, but there's more to it than that." As Flurry drove her cock into Twilight's throat, she reached over the stockade. Twilight heard Flurry's magic activate, then a whistle as Flurry patted her arse. "There are some things far more humiliating than being watched, Twilight."

Just as Twilight was wondering what Flurry was hinting at, she felt a hot, moist breeze across her snatch. It was like something was breathing on her. Another few pats from Flurry, and Twilight felt some thin, hairy arms wrapping around her waist. She jerked her head to the side instinctively to find out who this thin, hairy intruder was, but her head was kept in place by both her bonds and Flurry's dick. All she managed to do was wrench her neck. Her eyes went wide as she felt the pointy, triangular tip of a very fat dick pressing at her entrance. She tried to squeeze shut, but her legs being pried apart made that a lot more difficult than it had to be. As it slid inside, she could at least be grateful that, while it was wide, it wasn't very long. As her assailant began pumping quickly in and out of her, Twilight looked up at Flurry with pleading eyes.

"Now, Twilight," smiled Flurry condescendingly. "If I let you out, this wouldn't be much of a punishment. You are to sit there and take his cock. And he deserves to stick it in you." She turned her attention to the thing on Twilight's back. "Because he's a good boy. Yes he is. Yes, he is a good boy."

As the dick pounding into her picked up speed, everything suddenly clicked in Twilight's head. She was held in place, the male that had mounted her was covered in hair, was a "good boy," and this was meant to be more humiliating than being watched by an audience. Twilight had been selected for use as a fuck toy for a dog.

As if he were laughing at her, the dog barked twice, confirming Twilight's misfortune. She'd never felt so low as she did now. Her niece was filling her throat, so she couldn't speak, and her vagina was filled with a presumably dirty dog dick. To top it all off, she couldn't do anything about it, as she was bound not only by the multiple tethers, but also by her contract with Flurry.

Suddenly, she felt the dog pressing hard against her. He hadn't been at it for very long, just a minute or two. She was relieved at the thought that this would at least be over quickly. Then he pulled his hips back and slammed them forward again. This push finished his assault on her pussy, as now his whole length was up inside of her. This would have seemed to not be a problem, as it wasn't long. However, at the base, there was a big, hard, thick knot that effectively locked him inside of her as he sprayed his seed up into her pussy. To make matters even worse, he dismounted and turned around, tugging on the knot inside of her.

Twilight had tears in her eyes as she looked up at Flurry. This was more than she could take. She wanted to apologize for her brazen behaviour and stop this whole thing. But Flurry wasn't looking at her, her attention on the dog and on her next move. There was a great deal of time left, and a great many things she wanted to do with Twilight.

After several minutes, there was an audible pop as the dog pulled himself free of Twilight's grip. Flurry pumped a few more times into Twilight's mouth, and came down her throat. As she pulled out, the dog came around to the front and licked Twilight's face, his tongue slipping inside of her mouth.

"Please, no more," pleaded Twilight. "I'm sorry I fought you on this. Please, can we go back?"

Flurry kneeled down. "I suppose we could, but I already paid the deposit. Besides, I want to make sure that you remember this weekend for a long time to come. We have more than eleven hours of your punishment remaining."