The boys don't get a choice

"You want this. You want them. Look at those hard cocks, living under your roof. You could have them whenever you want..." Joanna barely heard Juan's whispers, se was so focused on the scene before her. But instinctively she understood what he was offering to her and she nodded. Her eyes still glued to her twin sons who were trying to cover themselves. "Just say yes to the Idol's offer and it will grant you your wish." "YEsss..." Joanna came again on Juan's cock and would have collapsed had he not been holding her up.

The boys could not understand what this day was. First they were seduced into a hot threesome by the MILF next door, now they were caught by their mother, but she was busy fucking the neighbour rather than scolding them. If anything it looked like she wanted to join in. Alexis decided to make her play. "Oh boys, we are not done yet. 'Mommy' needs more." She pushed their hands away and took hold of their dicks again. "Aww hell no, this is insane!" Noah protested. "Oh shush. Your mother wants you to stay, don't you Joanna?" "Yess..." with shaky steps their mother walked up to them only to fall on her knees infront of them. Alexis joined her and soon the two MILFs were sucking their dicks again. Juan circled behind them and got between, offering his dick too to the women and preventing Noah and Oliver from escaping. They took turns sucking and jerking the cocks. If both of them were working on the same dick, they would pause and make out. None of the humans had ever been this horny in their lives and when the boy's got close to the edge, Alexis made sure to work her magic fingers over Joanna's clit so that all three humans came at the same time, the boys covering their mother's face with cum even as she screamed in orgasmic pleasure.

Joanna leaned against Alexis who made out with her and they then began to lick the cum off of their faces. Inside her head, she heard the voice of the Idol and surrendered to it. The boys were too stunned to notice that when their mother ended the kiss with Alexis, their tongues lolled out of their mouths inhumanly long and forked. Neither did they see the glow in their eyes. But they felt the difference as their mom went back to sucking them off. "HOLY HELL!" The mouths was hotter and sucked them like nothing they had felt before, fitting them both in at once. As they looked down Alexis was shedding her disguise and revealed her glorious succubus body. Joanna too was transforming, her breasts growing into gravity defying basketball size, all blemishes on her skin disappearing before her skin reddened, as if some poison were spreading through her veins and discolouring her. They were terrified but could not get out of Juan's grasp as he too transformed into his real incubus form. Joanna ran her fingers through her new onyx hair, giving them the first glimpse of the horns that were already growing out, and let the dicks out to reveal that her tongue was coiled around them like a constrictor snake. As she pulled her tongue in, she licked her lips one more time before telling her sons, no ordering them, "Give yourselves to mommy. Surrender to me." She stood up and as she did so her wings grew out of her back.

Joanna felt powerful. She felt sexy. She felt... Evil. These were her sons. Her's to corrupt. Her's to enjoy. And they couldn't resist her. Alexis and Juan helped place them on the floor and their mother rode them both, her succubus cunt eagerly welcoming both of the dicks at the same time. "You came from this womb together, now I'm gonna welcome you back together."

Juan and Alexis looked at the scene and were proud of their work. Alexis too was riding her sons cock, they just couldn't wait any longer. But they felt it was only proper to let Joanna be the one to bring her sons to the Idol's light.