His mom and sister are going to love the new him.

Jake strides forward arrogantly, grabbing the two women by the hair, and slapping his dick against their faces. They both seem too shocked to do anything more than whimper, though the man regards it with horror and dawning comprehension.

"Jake?" he says. "Oh, God, Jake they've got you too." Jake snarls at his father, then shoves his cock into his mother's mouth.

"Yeah, take it you, bitch," the young incubus grunts, brutally facefucking the older woman with his immense cock as she gags on its crimson fleshy length. His sister looks on with horror, while his father turns away.

"Son... son you can't want to do this," says the man piteously. "Not to your mother."

Jake grunts and cums down his mother's throat, then pulls out. The woman sputters and coughs, black incubus cum dripping from her lips. "Your turn, Madison," says Jake to his sister. She whimpers but soon finds herself swallowing her brother's fiendish prick just as her mother did. Jake's father glances at his groaning wife.

"Alice? Alice are you all right?" he asks. Alice looks at him blankly and then crawls over to Jake. As her son pounds her daughter's tonsils, Alice begins to anxiously lick and swallow his balls. Jake gives a satisfied chuckle and then blasts Madison's mouth with his jism. He pulls out and slaps his cock on his sister and mother's faces. Whereas before the pair reacted with fear and horror, now they respond with delight, cooing and fighting over his meat.

His father watches with horror. "Oh, God, oh, Christ, people, this isn't you, this isn't what you want." Alice and Madison ignore him, each taking turns on Jake's demonic dick, now cheerfully trying to **** as much of its length down their throats as they can. Jake grins as they debase themselves on his mighty cock, then cums with a howl, drenching his sister and mother with his seed. Alice and Madison groan with delight as the black ichor lands on them, swallowing as much as they can. Soon the pair are licking it off each other, which leads to them trading jism-filled kisses.

Jake cackles as he watches his mother and sister being transformed into a pair of incestuous wanton sluts. "I think you two are ready for the main event." He slashes off the cords binding them, then pushes his mother onto the ground, and his sister on top of her. The pair groan at the rough treatment completely unphased by Jake's brutality now.

"Oh, that's it, son," moans Alice, rubbing her daughter's cleft. "Treat Mommy and Sis like your filthy whores."

"Use us like the horny bitches we are," shouts Madison. Jake levels his gigantic cock at his sister's pussy. "Give it to us, good and---FUCCKKK!" she squeals as her brother drives his meat into her. "HARD! SO HARD!"

"Yeah, that's it, Jake," hisses Alice, rubbing her hands over her daughter's rutting form. "Fuck your sister-bitch, fuck her like the trash she--" Suddenly, Jake's tail darts into his mother's dripping cunt. "OH, FUCK, YES! AHHHHH!" howls Alice. When she's recovered a measure of composure, she smiles at her son. "Oooo, such a good boy," she moans. "You've got enough for both of us."

Madison stares at her mother lustfully. "He's soooo good in me, Momma."

"I know, dear," croons Alice. "So deep, so hard, so--FUCK!" The pair kiss again, deeply. Jake grunts and cums into them. Mother and daughter scream into each other's mouths as they climax, and the change overtakes them. Skin turns darkest crimson, tits and ass inflate while the waist narrows, and horns, wings and tails emerge. Soon the pair are another two succubi sexpots who look more like sisters than mother and daughter. Alice and Madison grin at each other as they break the kiss then smile at Jake.

"Thanks, bro," says Madison as Jake pulls out of her filthy cunt.

"That was so fucking lovely," groans Alice.

"Hey, anytime," laughs Jake. He slaps his sister's ass, causing Madison to coo in delight. "I think Dad's looking a little lonely, sis. Why don't you go cheer him up?"

Madison and Alice laugh cruelly at that, staring at the whimpering form of the man they called 'father' and 'husband' respectively. "Mmmm, good idea," says Madison, crawling to her father on her hands and knees. Alice and Jake watch her go, and then Alice crooks her finger at her son.

"Come on," she says. "Momma needs more of that beautiful huge cock." Jake grins and with a snarl, plunges his prick into her pussy.