"So needy... I think you need a lesson in restraint, pup."
And then she was up on her hooves, tail flicking over a perfectly muscled backside. He groaned, unable to help himself, and she flagged her tail up just for him as she leaned forward, digging around into the toy chest that was for her and her alone. He wasn't allowed to see what was in there and his heart leapt into his throat, pounding and tightening there at the mere thought of what Christmas secret may be revealed there. He could have looked at any point, truly, as the chest was not locked, but it never did him well to incite punishment when it was not, honestly, in the name of good fun. He still bore the welts of her last beating, marks throbbing beneath fur on the backs of his thighs and his still-sore buttocks.
When she straightened once more, having duly treated him to a flash of her flushed, dripping sex, what he saw did not disappoint in the slightest. On the contrary, the chill that ran down his spine, fur curling in tiny mats of sweat, was only betrayed as arousal as his cock spurted a hot globule of pre-cum onto his belly, the needy wolf pup simply unable to contain himself as she advanced on him with the thick strap-on protruding from her crotch. The end of it was sunk into her pussy, stretching her pussy wide as she worked it into herself, breath quickening.
"Unnff," she moaned. "It's thicker than you... And this will remind you, just to start off with, what position you should be in under me, today and always."
As if the collar around his neck, the snug circle of leather engraved with the name of his owner and mistress, told him any different but he moaned deep in the back of his throat as a braided leather riding crop smacked into her paw, brown eyes alight with fervent need. For the mare needed her pup as much as he needed her, although she was, forever and always, the one who would get to call the shots. She would always be on top, his mistress, and the closure of her paw tight around his throat as she leaned over him, sliding that oversized faux cock up against his as if to simply mock his size, was all he'd ever craved.
He wouldn't have had it any other way.
"Better be keeping up with your training, puppy... Or else I'll be disappointed."
He could not even lick his lips or howl in anguish that he knew he had not, his tail hole as tight as a virgin's and still begging for the penetration of that monster, glistening only with the faintest covering of lube. That was all he'd get, he knew, and he panted heavily, chest rising and falling in a sharp flutter as she advanced, her wicked intent as clear as day. One thing, however, he knew for certain as she released his leg-straps, if only temporarily, bringing his knees up towards his chest and pinning them there with her bodyweight alone, his tail hole clenched and yet exposed.
His Christmas had only just begun.