Screw this I'm outta here.

Shaking her head, Melissa sobs and throws the bedpost aside, backing away towards the door while looking back at you with tear-filled eyes.

"I'm sorry, I can't. I just... I...", Melissa sobs as she reaches the door, casting one final sorrowful look at the smoking remains of the corrupted creature that had once been her sister, then fixing you with one final, wordless look of contrition, before disappearing outside, slamming the door behind her.

She is barely gone before the changes begin to overtake you in both body and mind. Within moments your human understanding towards her decision, hope that she manages to escape, and fears for her well-being are abruptly consumed, shifting into an alien, boiling rage over her cowardice, which just as quickly is forgotten as you lust-filled brain begins to fantasize about hunting her down and fucking the humanity out of her.

Your body quickly metamorphosizes to match your twisting mind. Your skin darkens and reddens to a tanned crimson hue, as powerful newly formed muscles begin to tighten underneath it, pushing up to give your body raw, sexual new tone and definition. Fangs erupt from your teeth as your fingernails and toenails lengthen into wicked, black claws. Your hair, oily and matted from your long ordeal, darkens and lengthens into a smooth, pitch-black mane spilling out over your shoulders.

You feel yourself growing almost a foot taller as your shoulders and chest broaden and harden while your waist narrows and tightens into a rock hard six-pack. You erection, already bursting to full with your lust-filled mind and the wonderful sensations of your primal, magnificent new body, nearly doubles in size, pulsing and spraying the room with multiple jets of tainted, demonic cum. Black wings, horns, and tail complete the transformation as you are fully remade into a creature of darkness, your former human emotions and motivations corroded away by the savage urge to fuck and corrupt. Your features twist into a wicked fanged grin; it is more glorious than you ever would have imagined. Now, your cock aches for pussy. One sweet, innocent pussy in particular.

With a single, powerful motion you easily tear out of your restraints and lunge off the bed, smashing your way through the motel room door, wood splinters flying everywhere. You survey the motel parking lot with burning red vision as your fully engorged, overfilled cock quietly spurts tiny rivets of cum in anticipation of ravaging the innocent girl your old self had only moments ago been trying to protect. You note the empty parking spot where you had parked earlier; it seems Melissa has taken the truck and fled. Your human self would have been proud of her initiative; even in your altered and corrupted state you feel more thrilled than thwarted, the joy of the hunt will add satisfaction to the conquest.

With your inhumanly sensitive infrared vision, you spot the heat from a car engine far off in the distance, beyond the range of normal human sight. There are no other cars out here at the moment, it must be Melissa. She has to be going at least 100 miles an hour. A bit too fast for you to catch up to her with brute ****. With cruel mirth you hope she doesn't wreck herself before you manage to track her down.

Spreading your wings and taking to the air for the first time, you gaze down upon the tracts of rural wasteland below as you begin to pursue your prey from the skies. She may be able to outpace you, but you should be able to outlast her, especially given the poor condition the truck was in when you parked it. It's only a matter of time before she's yours, forever. You're even a little curious where she thinks she can find safety now that she's lost everything.