Pervert the whole family

Danya knew that the way to destroy Roger's thin shell of decency was to rob him of the normalcy of his life. By revealing his white-bread family to be sexual deviants, he would forever revert to his natural, deviant self. The thought made the demoness grin with pleasure, and she floated down to Roger's bedroom...

Karen was in the shower, using the shower massager to bring herself to orgasm. Danya knew that this little harlot would be an easy convert. Reading Karen's mind, she found a submissive slut who wanted only to be used and dominated by her husband. Roger was too afraid to be sexually aggressive, since he knew his true nature was to use women as sexual playthings. As Karen was fantasizing in the shower, Danya materialized and started rubbing her breasts.

"Yes... that's it, slut. Make yourself cum. You know you need sex, you little whore. And I'm going to give it to you."

Karen moaned in pleasure, thinking it was just her imagination. She had played out this fantasy many times in the shower, imagining that she surrendered herself to a dominant lover. Danya cupped her breasts and leaned in to kiss her neck, then lowered her hands and played with Karen's **** pussy. The slutty woman moaned and moved into Danya, giving herself freely to the demoness. Danya knew she had her, but still spend the next thirty minutes using more and more depraved methods of sexual domination. She finally made Karen cum by jamming the showerhead against her pussy and biting her nipples, while at the same time sticking three fingers in her ass. As Karen came, Danya whispered in her ear an ancient incantation, binding the woman to her will. Karen's eyes flickered, then opened to reveal inky black irises. "Yesss... I live to serve you mistress..."

Danya disappeared, coming to rest next in Jeff's room. The boy had inherited his father's wicked side and was jacking off to a hardcore porno magazine. The page he had open showed a girl being fucked by a horse while sticking a snake in her mouth. He was mumbling, and Danya knew he was fantasizing about **** helpless sluts like the girl in the picture. She slapped him, causing his hands to fly up into the air. She leaned right in and sucked his hard dick in her mouth, making the boy moan in desperation. She sent psychic waves of deviance into his mind, which he eagerly accepted. He brought both hands down onto her head, forcing her to suck him harder. "That's it, bitch! Oh, yeah..."

Danya licked with inhuman skill and soon had the boy coming in her mouth. As she did, she again whispered the words of dark magicks and changes came over the teenager at once. His baby fat disappeared and his muscles hardened, but the biggest change was his cock, which grew to over twice its normal size. His face took on a wicked scowl as his own eyes turned black. When Danya released his now-softening member he thanked her by getting on his knees. "I serve only you, mistress..."

Danya's body disappeared into mist, but then she rematerialized in the daughter's room. Lisa, while sexually curious, was still a virgin and a prude at heart. Danya knew she would be the biggest challenge, but also the highest satisfaction to convert. She thought about her options: she could change into demon form, scaring the girl and **** her into submission, she could seduce her softly like she did the other family members, or she could get the girl's mother and brother to take her, converting her with the perversion of ****.