A change

You open your eyes as you continue to pound Amanda. She turns and stares into your eyes. You watch as become fiery pools divided by a sin filled black slits. She smiles as you push into her harder. Her canines elongate into slender, razor sharp fangs. You know your eyes and teeth are changing as well.

Your ass feels very odd. The pressure there builds and builds. Then a spaded tail bursts forth from the bottom of your spine. It grows out two feet, then three, then four, until it finally stops at about six feet.

You feel a sexual thrill with even a gentle breeze caressing the end. The tip oozes gooey black pre-cum. You think about what an amazing sexual tool it is. You want to shove it in some unsuspecting human. And, Amanda is that human. You slither it deep into her ass.

Her eyes roll back as she screams. "Fuck yes! Fuck my ass! Fuck out my soul!"

You expect to grow bigger and more muscular, yet you feel that odd pain again. You cum one last time from your human cock as it disappears. In its place a slit opens up, a wonderful slit. You adjust position scissoring with Amanda as you watch her skin begin to change to a pretty crimson. You orgasm from your new sex, shivering from the sheer sinful pleasure of it.

You pause only momentarily, before you resume grinding your sex into Amanda's. She giggles as she cums and a tail springs forth from her pert rear end. You lick your lips imagining her new appendage penetrating your virgin ass.

Amanda doesn't disappoint, jamming her lengthy tail in your waiting hole.

You look at your hand. "Ooo." You coo as it turns a demonic red. Your fingernails grow long sharp and onyx. You run them along Amanda's inner thigh, drawing black blood. She groans in pleasure as they instantaneously heal.

You bring a hand to your chest and pinch your nipple. You orgasm spewing juices from your pussy as it slaps Amanda's. You feel you breasts grow to fill your hand then enough to fill it twice before the growth begins to slow.

The thought of lewdly displaying your body in front of hundreds, even thousands of humans arouses you like nothing before. Letting your lust loose upon their unsuspecting mortal minds makes you quiver with anticipation.

You feel your tail, buried deep in Amanda's ass is ready to explode. You slow just a bit to let your pussy get close as well. Amanda cums from her tail setting off a chain reaction. You cum from your tail then your slit as Amanda cums from her spectacular cunt.

Your ass fills. Amanda's ass fills. Cum leaks from both as the juices from your pussies spatter almost ten feet.

You and Amanda untangle and you look into her eyes. You grin wickedly. Her eyes, like yours, are filled with nothing but cunning, lust, and depravity.

You look out at your little troupe. Maya's soul is nearly gone as she ruts with Warren. You look into your soon to be sister's fire flecked eyes. She will take care of Warren. Jake is busily fucking Kristen doggy style, both of them watching the show. Megan sits by a tree watching the two of you with three fingers in her pussy.

Ananda grins back at you and sexily rasps. "Megan's soul is mine."

You nod approvingly. "Jake and Kristen are mine."

You step toward the infected couple and realize what Lilith's gift was.