As Ralphy ruts inside of me, I can feel the changes continuing. My fingers extend, becoming four digited paws as my thumbs shrink. My tail extends further, each pop of the growing vertebrae sending pain and pleasure through my body. Even my feet feel off as I can feel them lifting further off the bed, my knees shifting into haunches as the pads and claws and fur form on my extending feet, eventually ending with the same fate as my hands. I try to resist the thrusts of Ralphy, but the pleasure is too good. Extending from my recently acquired sheath, my knot throbs with desire, leaking from the tip. I...I must have him in me.
I let out a howl as the next wave hits me with my dog's thrusts. My face feels like it's on fire, even as I see a muzzle pressing outwards in front of my eyes. It's surreal, but...with every thrust, I want it more. Soon, Ralphy releases into me again, the comfort of his embrace washing over me. I go to thank him, but find my muzzle can't move well enough for speech.
"I have to admit, I didn't think it would take this long. You must be really starved for attention, huh?"
I look up at the voice and see Ralphy. Or at least, what I think is Ralphy. Above me is a husky, leaning on his knees, knotted deep within me, and looking much more human-like, his paws...hands? wrapped around my middle.
"With a few more goes, I might even begin to look like myself again. How about it, pup? I bet you're gonna love being a dog."
The words terrify me, but deep down, also bring me comfort. I try to resist, but the sensation is too strong, until...