The Perfect Succubus

"Fuck... I've wanted this so badly..." Jess moaned as she licked her lips. "Make me fucking cum!"

You smiled as you watched your girlfriend surrender quickly to the growing desires of her body. You could sense how horny she had been and laughed to yourself, she had clearly wanted this before you even showed up.

"Naughty girl," you laughed as you grinded your pussy against her's, the two of you scissoring as Jess moaned louder, squeezing her growing tits. "You love this, don't you?"

"Fuck... I've been dreaming of this since it started..." Jess moaned as she grinded her pussy harder against yours, her pussy dripping wet. "But I wanted... ohhhhh..."

"What did you want, slut?" You asked with a grin. "Tell me!"

"Ohhhhh..." Jess moaned as she arched her back. "I wanted... to be the Succubus fucking you!"

She screamed as you came hard, your black Succubus cum covering her pussy. You laughed, Jess was such a naughty little slut, you loved it!

"Well... then we're going to do so much more together," you said as you pulled back, thrusting three fingers into Jess's pussy. "Now, cum for me slut! Become the Succubus you were meant to be!"

Jess screamed in pleasure as she came hard. You leaned back and watched as you fingered her pussy, eager to watch her transform. Her skin turn black as it grew out from her pussy.

"Oh fuck..." Jess moaned as she felt her body changing. "Fuck! Yes!"

She screamed as she came again and again. Each orgasm changing her body. First, her tits ballooned out until they reached sinful G-cup proportions.

"Oh yes! I'm gonna be so hot!" Jess laughed as her teeth grew into fangs.

You watched as your girlfriend's body shook with pleasure. Her ass ballooned out, and she grew taller and more fit. Her skin turned black and her eyes and hair turned into glowing fiery red. Her juices turned fiery red as she came again, bat wings bursting from her back and horns emergnig from her head.

She gasped as she fell back on the bed, moaning as she did.

"Oh fuck..." She said in her new sensual voice. "Thank you babe."

"I knew you'd be a beautiful Succubus," you said as you kissed your girlfriend turned Succubus.