Marion yips at you, moving over on the bed, giving you room to sit down. "Wow," you say to her, "You want me on the bed, huh?" Marion again appears to wink at you. Again, something still doesn't seem right, but you shrug it off. Perhaps Marion has some sort of a tic, you tell yourself.
You decide to hop onto the bed next to her; you've really enjoyed your time with her today. Plus, there's no need to have an unhappy dog in a cabin with you all night. You stretch out on the bed, turning on the television. There's a game on the tv, the Indians vs. the White Sox. You find yourself absentmindedly petting Marion as you watch the game.
Marion inches closer, again pushing her face into your crotch, nuzzling hard against the fabric of your jeans. Though only a few minute before, you would have pushed her away hard, this time you simply shift your weight slightly, wiggling a bit under the pressure.
"Come on now, girl, that's...that's not right," you say, a slightly dreamlike quality in your voice. Your mind feels somehow clouded now, almost like you've been drugged.
Marion pays you no mind, now licking at the fabric of your crotch, and you can feel the heat of her breath warming you up quite nicely. Your cock begins to bulge now, which only seems to encourage her, and she climbs onto your legs, pinning them under her body, even more eagerly snuffling at your crotch.
You begin to think of how lonely you've been, and how nice it would be to have someone, anyone, to pay attention to your needs. The pressure in your jeans builds, and you begin to give into temptation, unbuttoning your fly, sliding the jeans down, letting Marion tease you through your boxers. They quickly become moist with dog saliva, and it only serves to get you harder. Her tongue rubbing your shaft through the thin silk of your underwear gets you rock hard.
"Marion..." you mumble, the dreamlike haze even stronger now, "You keep that up, and I think you're gonna get something you might not want." Less than a half hour ago, you would have found this idea repulsive, yet now you're quite ready to let her lick you up and down.
Marion gets off of you, and for a moment you think the evening's fun might be done. You're slightly disappointed, knowing that once again you'll have to finish yourself off. But then Marion turns around, facing her hindquarters to you, and raises them in the air, her hole inches from your face. A staggeringly powerful aroma floods your senses, sickly sweet and infinitely arousing. You see a few glistening droplets fall, and you realize that Marion is in heat.
Haltingly, you put your hand against her haunches, experimentally sliding a finger into her hole. She growls softly, pushing back against it, driving the finger deeper. You finger her faster, more aroused than you have been in recent memory, not caring that she's a dog, secretly loving the taboo of it.
At first you thought it was your imagination; her paws seemed to be changing, growing into individual digits, albeit with long black claws and rough, calloused pads. But then you noticed her teats growing, blossoming into small breasts, her whole body pulsating. Her hole transformed as well, becoming more like a vagina, its shape almost elastic, becoming endowed with a clitoris, even.
By the time you gave into your urge, and slid your cock in, her fur had begun to retract. As you neared orgasm, her muzzle was at half of its original length, and her face looked mostly human. By the time you erupted within her, she was a gorgeous petite woman with mousy brown hair, a soft thin mottled covering of brown and golden fur across her body. She had six breasts, none larger than a b cup, and a cute black nose. And she had a voice.
"Grr.." she uttered at you as you cuddled post-coitus, "You make me happy. Marion good girl?"