You couldn't help but chuckle at the way Diana's body responded to your massive cock, her tight cunt swallowing every thick inch. Her moans grew louder and more desperate as you began to move, each thrust sending shockwaves through her petite frame.
Her breasts jiggled with the force of yout penetration, already starting to swell from your demonic essence seeping into her veins. Diana was changing before your eyes, transforming into a succubus slut just like you - curvier, sexier, and craving nothing but dark pleasures.
You gripped her hips harder, slamming into her pussy with renewed vigor as you reveled in the depravity of it all. The corruption was spreading rapidly now, claiming every inch of skin it touched until her skin was a dark shade of red, with a glowing tattoo above her womb that marked her as yours.
"Fuck yes," you growled between grunts of pleasure. "Take it all you dirty little whore. You were made for this."
With that she finally woke up, but she offered no resistance to the stranger fucking her so fiercely. Your words set her ablaze with lust, Diana's corrupted pitch black eyes rolling back as she surrendered completely to the dark pleasure coursing through her veins. Her pussy clenched around your cock like a vice, drawing you in deeper as she rode the waves of corruption.
You felt it too - the primal urge to dominate, to claim and possess every inch of this succubus-to-be. With each brutal thrust, you could see the transformation taking hold, Diana's body molding itself to your will. Every inch of her became perfect, with a shapely womanly form that was so, so fuckable.
"Yes... Yes!" She screamed as you exploded inside her with load after load of dark, demonic cum filling her womb. The tattoo above it pulsed with an otherworldly energy, marking her as yours alone.
She buckled under you in her intense orgasm until her body had absorbed almost every drop of your corrupted seed. All but a small amount that dripped from her pussy and she so eagerly scooped and licked with her extended demonic tongue.
"Thank you for liberating me from my old, boring life, Mistress. This is so, so much better", she said with a lustful glare while she cupped her new enhanced breasts with her clawed hand. "I hope you have more of that delicious cum inside you. That little asian whore I call a wife deserves a good load in her mouth"
The way she spoke about the woman she had married and loved so deeply left no doubt in your mind. Diana's mind and body had been thoroughly corrupted and she served no one but you.
As would her partner soon enough...