Annie has a devilishly clever plan.

"It issss time, Annie," you moan in a commanding tone as you drive your tail into her snatch. "You will ssssoon transsssform."

"Ooh...yes...Mistress...I want that...I want every one of...my friends...to be like me..."

"Asss do I," Nichole grins wickedly.

"Mistress," Annie looks up timidly, "I have a plan, if you'll allow me."

You lick your lips in anticipation, and beckon her to proceed.

Annie stands from your embrace, though it visibly pains her to do so. She crosses the bedroom and retrieves one of Nichole's robes, donning it with an expression of disgust at the need to clothe her body. Still, deception is a demon's greatest ally, you hear her rationalize in her mind. You are quite pleased that she has already begun to think of herself as a demoness.

You and Nichole exit the apartment, as per Annie's plan, and swoop over to the opposite side of the building. There, you both perch atop the living room balcony, doing your damndest to restrain yourselves from making too much noise as you suck each other's tits and tail fuck one another.

Inside the building, Annie knocks softly but repeatedly on the door as she fights the need to tear open her robe and bring herself off right there. In due time, she thinks, as the door swings slowly open.

"Annie?" Ken says with a startled glance. His boxers smell of sex; he's been masturbating.

"Can I...come in?" she says breathlessly, walking through the threshold without another word.

"Uh...sure," Ken shrugs, as he shuts and locks the door behind her. He is visibly entranced by Annie's walk, and the burgeoning sexuality that is slowly emerging. ?So, um, what's up?"

"My libido. And your cock," she grins, tossing away the pillow and sheets that Ken was using to crash on his friend's couch. Without a moment?s hesitation, she disrobes and grabs Ken's shoulders with her developing strength, pulling him down onto the black leather couch. "Fuck me," she groans, tearing at his boxers.

Ken, in his delirious state, fails to put two and two together, and lets Annie ride his erection. You and your charge outside accelerate your own lust in time with theirs.

"Yes! Fuck, yes!" Annie screams. Her climax approaches rapidly. "Fuck my pussy, damn you!"

"Softer, babe. Mike 'n Jenny'll hear you!"

"Good....they can...hear me...CCCUUUUUMMMMMMM!!" she screams, feeling her vagina clench Ken's rod, milking it of its semen as they orgasm together. Annie grunts in knowing pleasure.

Ken pants from his release. "Annie...damn...I take it back...you're way far from repressed."

"You have no idea," she grumbles, her voice an ominous rumble. "You really think you can handle a succubus, Ken?"

Shock crosses his face as Annie locks eyes with his, right as the pupils constrict into slits atop a glowing red sea. "Let'sss find out!" she hisses, flicking her serpentine tongue into the thin cusp of air between them.

Ken cries out in alarm, quickly silenced by Annie's hand as her talons grow across his cheek, drawing blood with their expanse. She continues to ride and infect him while her reddening skin gives forth horns and tail and wings. He is under her total control within moments of her completed transformation.

"Open the patio window, ssslave," the new succubus hisses, pointing a claw at the objective as she dismounts her conquest.

Ken mindlessly obeys, stroking his erection all the while. When the doors are thrown open, you and Nichole enter the apartment.

"Mike and Jenny's room isss at the end of the hall," Annie informs you.

"You have done well," you reply, kissing her lustfully. "Thisss one isss yours."

"Thank you Missstresss," she moans, turning her attention and appendages back to her conquest as you and your sister charge the bedroom door. You crash through it with ease.

Mike is waiting for you inside, baseball bat in hand and cross around his neck for his defense. Your demon senses detect the stench of Holy Water in the room, drenched across the window frame, Mike, and his wooden weapon. Though Jenny's sexual scent lingers in the far side of the bed, she is nowhere to be found. The open window and fire escape behind Mike tells the story.

"I won't let you get her!" he shouts, swinging for your head.