Oscar chooses you

Oscar sniffs at Christina but then returns to you. He starts licking your pussy, and you can't help but moan from the welcome attention.

"It seems that Oscar has made his choice," your father says. He crosses his arms and stands back to watch the mating.

Oscar barks several times, then he jumps up, pressing his forepaws against your back. You feel the hard bone of his penis poke against your sensitive lips as he tries to mount you. Experiencing difficulty, he slips off you a few times, his claws leaving shallow welts on your ass. Eventually your father helps him find a comfortable position, and you feel Oscar's penis penetrate you.

The mating is frantic, even faster and less merciful than anything you've experienced in the past weeks. You've been playing at being an animal: Oscar is an animal. And he sees you as his mate, his bitch to be fucked and bred. He wastes no time at his task, and his body moves forward and backward as he pounds you with his shaft. You can feel his warm pre-cum beginning to ooze from his cock and coat the insides of your pussy. Already you're shuddering with the beginnings of an orgasm. Losing yourself to the moment, you start to meet his thrusts with your own and carefully shift yourself to maximize his penetration.

All this happens in the space of about a minute, by which time Oscar's knot has fully swollen and stuck become lodged deep inside your cunt. You and he are now tied together; your humiliation is complete. You are his bitch.

You instinctively lower your ass slightly and shift so that Oscar can more comfortably remain mounted while his knot is inside you. You start to move hips from side to slide, ever so slightly, feeling the knot rub against the walls of your vagina and even slip a little deeper inside you. You've never felt pleasure like this before. It's like having a large dildo inserted into your cunt and then inflated so that it's too large to be comfortably removed.

Oh, and imagine the dildo pumping you full of cum while it's inside you.

Christina has watched the mating with horror and no small amount of envy. She approaches you. Oscar growls at her and warns her away. Your father pulls Christina back a few metres and consoles her by having her roll over so he can rub her belly and pussy. "There, there. Oscar will take care of you as soon as he's done with Ally."

That's easier said than done. Oscar stays knotted to you for nearly half an hour. The sensation of his cock twitching and pumping thick doggy sperm into you doesn't cease during all this time. Despite the tie, the semen soon begins leaking out from around Oscar's penis, dribbling down your thighs and dripping onto the sand beneath you. You are completely submissive now. Any thoughts of being a bad dog, of regaining whatever shred of humanity you had left to you, have fled. All that remains as you orgasm over and over is your urge to service your new mate. He has made it clear who is in charge, and surprisingly, you're fine with that.

When Oscar withdraws, he leaves you feeling so empty. More of his cum spills out of your gaping hole, but you don't care. There's plenty in you already. You just wish you were a real bitch, so his sperm could fertilize you and knock you up with a litter of puppies. As it is, all he's done is bind you closer to him than you've ever felt to anyone, human or animal.

Your father mates Oscar to Christina next. You watch, fascinated to see what it looks like from someone else's perspective. It's a mixture of comical, obscene, and sexy. You're turned on again just watching it, and you start roll onto your back and start masturbating as Christina howls with pleasure.

Your first matings complete, your father brings the three of you inside for the night. You and Christina waste no time cleaning each other's cunts, licking up as much of Oscar's cum as you can possibly get. You settle down together to sleep. Oscar paces around the room for a while yet, smelling the unfamiliar surroundings and standing guard over his two new mates before finally joining you. The warm closeness of his body and distinctive musk of his scent make you feel secure as you drift off into sleep....