Tyson.

The door opened to bounce back against the wall stop as Tyson padded into the room.

The relief Merry felt, almost made him collapse to the floor.

Fuck. What if it had been his sister. Or worse, his father ... It wasn’t worth thinking about.

“Fuck sake Tyson! You scared the shit out of me!”

Tyson, for his part, just looked around the room. No doubt looking for his sister. Out of all of them, his sister seemed the only one Tyson paid any attention to, or obeyed instantly. But then, she had always been the one who had shared the most love with him. Always talking to him in that stupid tone of voice she used, and allowing him unfettered access to her room.

Something Merry didn’t share. He hated it when he was gaming and a cold wet nose poked at him demanding attention. Or walkies...

Merry turned his attention back to the mirror, only paying a little attention to Tyson, who was casually padding over to him.

Tyson came up behind him and stuck his nose up under the hem of the dress

“What the fuck are you doing Tyson?” A nose prodded his pantied bum and then he felt a long lick of a tongue.

“Tyson!” Merry took a step away. Tyson followed, keeping his nose and Tongue against Merry’s arse. Merry took another step away as he felt Tyson lunge and bite the panties.

“Tys...”

Tyson whipped his head down, taking with him, the panties Merry was wearing. Merry turned meaning to push away Tyson, but the panties now around his ankles got twisted and locked his feet together as he went to take another step.

“Woah! Shit!” Merry wind-milled his arms for balance in a move that failed. He desperately looked around for something to grab onto as he slowly started to keel over.

There was nothing. Everything he could grasp hold of, was just out of reach. Merry crashed onto his knees and hands.

“Fucks sake Tyson ... Ooff...!”

Merry grunted as Tyson jumped on his back.

“TYSON!!” Two black forelegs wrapped around his chest and something rapidly stabbed at his bare arse cheeks as Tyson’s rear legs scrabbled for purchase against Merry’s thighs and calves.

“Oow! Oow! OOW!!” Merry tried to twist his torso to push Tyson away but being only able to support himself with only one hand, denied him the leverage to push the family pet away.

Tyson growled his displeasure menacingly into Merry’s ear. Tyson had never growled like that before. Previously, all his growls had been playful ones, normally during tug of war games with his toys. This growl was not playful.

Merry froze in fear. The awkward, twisted angle he had set his position into, had opened up the gap between his cheeks a little and had brought Tyson, still locked around his chest, a little closer. The tip of Tyson’s growing cock found the natural cleft and Tyson, knowing instinctively that he was in the right position, drove his rear hips home in one mighty thrust.

Merry’s lips opened in a silent scream of terror and pain as Tyson entered him. Tyson growled again as drool dripped from between his canines and landed on the back of Merry’s neck.

Tysons back hips powered away as fast as he could drive them, driven by instinctual need. The copulating act was not long, after barely a minute, Tyson purged his seed along his shaft into the surrogate dog pussy beneath him. He hadn’t managed to get deep enough to tie and slipped from the warm and tight, but uncomfortably dry hole.

Satiated, Tyson jumped up onto the comfortable bed and rolling part of his body over, started to lick clean his balls and cock.

Merry, still on his hands and knees, dog cum slowly seeping out of his battered sphincter sobbed into the carpet as little dribbles of dog cum made their way down his inner thighs.