Winner #52 - Bark Like a Dog! (Patreon)

Story snippet:

"Yeah, grip those sheets and bark like a dog, baby..." she said, feeling him grip around her.

"Woof, woof!" he replied.

"What the FUCK?" she interjected.  Her bags hit the floor.

"Oh wow, you got so tight..." said the woman on the bed.

"What are you doing with my boyfriend?!" asked the girl in the doorway.

"You had another girlfriend?  Hmph.  Guess now you should mewl like a bad puppy..."

"Another girlfriend?"

"Sorry you had to find out this way."

"Screw you, lady!"

"Just because I've been throwing it in your boyfriend all day is no reason to be rude."

"Throwing... it in?"

"What do you mean?  It's up his ass. My cock, I mean."

"It's... what?"

"I'm, uh, pretty up in there.  He likes it deep."

"You're fucking his ass?!"

The woman on the bed thrust a few times, slapping audibly against his backside, before she responded.

"Ayup.  Why do you think he's so red in the face?  He's getting stuffed as we speak."

"Is she fucking your ass?!"

"Bark if it's up your ass, baby."

"Woof, woof!"

"We fit together like lock and key.  He's the lock, of course.  Although I've jammed myself in so many times, he'd probably fit just about any key at this point," she said, slapping his ass playfully.  "I've been stretching this bitch hole out for months," she said, giving his ass a hard slap, which had the effect of dyeing his cheeks red.  "Right now it's got a death grip around me..."

"Take it out!"

"I'm not taking it out until I cum.  And he wouldn't have it any other way, you know.  He's shot more jizz on these sheets while I was nuts-deep in him than he ever shot in you, honey."

"He... but..."

"Bark!  Bark like the bitch you are!" she said, ignoring the girl in the doorway.

She spanked him with force, in response to every bark and yip... and he began to shudder... and then, it spurt out, splatting against the bed covers.

"Yeah, tighten up for me! Mmmgh...!" she groaned, and his girlfriend watched in shock as he was inseminated, having cast out his own all over their sheets.

Just like that, it was over - she pulled her full, engorged noodle from out of his recently plugged hole, revealing a gaping orifice visibly oozing with cum.

Though all of the jizz had found its way to its intended place, the woman on the bed wasn't entirely finished - she picked up a... sizable toy, already lubricated, and aimed it right at the aforementioned open hole.

Shellshocked, his now ex-girlfriend watched in stunned silence as his new girlfriend twisted the tremendous plug inside, until all that was visible was the fluffy tail on the end, sticking out of her ex-boyfriend's ass.

She turned around, without a word, and left.

The woman admiring her boytoy's toy-tail gave him a satisfied slap on the ass.  "Bad doggy."