Mama enjoys a hearty helping of stuffing.

The three of you fuck the woman mercilessly, as she eagerly takes your massive cocks in her, the Strain having robbed her of all restraint and morals. You watch her full asscheeks jiggle as you pound her, and shoot your blackish ichor into her, then grunt and continue fucking that tightest hole. "Oh, fuck, man," you groan, "your mother's ass is amazing!"

"You should feel her fucking pussy!" snarls Derek. "She's gonna be insanely hot to screw once she becomes a succubus!"

You glance down, seeing Derek's throbbing massive demon dick pistoning in and out of his mother's twat. As you watch, a wicked idea occurs to you. You quickly shift your tail, shoving it into the woman's cunt alongside her son's cock. "Mmmm, you're right," you snort, as your tail fucks it alongside Derek's dick. "Your mom's got a great pussy."

Derek laughs at that. "I like the way you think." Soon his tail joins your dick in pummeling his mother's tight ass, as the woman screams and groans around Mick's cock. "Oh, fuck, you're right, man!" Derek groans. "Her ass is sooo good!"

His mother pulls off Mick, and moans. "Oh, that's it boys, destroy my fucking holes, use me like the fucking whore I am, fill me up with your giant pricks, shoot your cum in me, oh, FUCK!"

Mick grabs her head. "I have got to stop that filthy slut mouth of yours," he snarls, shoving his cock and his tail in to it. She sucks them eagerly. The four of you pitch against each other for another few minutes, and then you and your incubus brothers-in-arms climax into her warm body. The woman screams and climaxes as the three of you tear her soul from her, her skin rapidly shifting to a hellish red, while her already amazing figure swells to the glorious sensuous excess of a succubus, while the lines of aging and flaws of mortality vanish, giving her the beauty of the damned. She throws her head back as her horns, wing and tail emerge, and lets out a keening moan. She glances around, her sexual excitement wafting off her.

"More," she says, a trickle of Mick's black seed dripping down the corner of her mouth. You all grunt and fuck her more, the succubus now equaling your infernal strength and lust. As you approach climax, she snarls at you. "Pull out. Paint me with your cum!" The three of you follow her instructions, removing your dicks and tails from her, to jerk them off on her prone form. The woman rubs her hands over her gorgeous body, rubbing her black nipples, oozing with infernal milk. You and your fellows snarl, shooting your inky semen all over, drenching her form with your juices. She howls in delight as you do it, then regards you in lustful adoration when it is finally done. "You boys," she says fondly. Rising to her feet, the demoness fixes her daughter with her soulless red eyes. "Now, Stacy, mommy has a treat for you."