She wants daddy

As much as you enjoy the two succubi worshipping your dick, you still have work to do. "There is only one uncorrupted soul in this house right now..." Rhonda gives one more kiss to your balls before getting off the bed. "Can I have daddy? Pretty please? I'll let you fuck my ass if I can do this." "You would let me fuck your ass anyway." She giggles. "...Yeah. I want this big fucking daemon dick deep inside my ass." The succubi plant kissess all over your dick, stopping to make out when their mouths meet at the top. You can't deny your sister her chance to corrupt her own father. "Go on. Show daddy what a nasty slut you are. Make him ready for Mistress Lilith." Rhonda saunters out of the room happily but your mother is getting jealous for attention. "Come on son, show your mother some love... I did a good job and need a reward..."

Rhonda hears her mother's moans start to turn into screams of joy as her brother and master 'rewards' her, before she steps out of the magical bubble and the sounds are muffled. A part of her wishes to watch that unholy act, but right now the thought of her daddy's cock is far too tempting. She wastes no time on subtlety or seduction. She crawls onto the bed and pulls off the bedsheets over her slumbering father. By the time the man starts to wake up, his sleepy eyes see a dark figure straddling him, with eyes that glow with hellfire. "Wakey wakey daddy..." The confused mortal tries to fight back, but the succubus overpowers him easily. She slides her wet cunt along his dick, making it grow hard almost instantly. "OOhh... Does daddy like when I slide my wet virgin cunt over your hard cock? Mm... I bet daddy would like it even better inside me..." She teases him, torments him. Moaning and writhing ontop of him and guiding her father's hands to her now massive breasts. Eventually his resolve breaks and he starts to knead her breasts hard and hump his hips against her. "Daddyy..." When Rhonda gets off of her father, he growls in anger, his mind clouded by lust so badly. But she just turns and poses for him, her ass high. "Fuck me from behind like a dog. Take me like the slut I am daddy."

Her father moves without hesitation, damning himself for the chance to fuck his virgin daughter. She moans as he slides in and he feels like he could have cum just from entering her tight cunt the first time. But he is too far gone to show patience or care and starts to fuck her roughly. His pace increasing and the strokes getting stronger and longer as he too begins to transform. Rhonda hears the door open and sees you and mother come into the master bedroom. "Watch this master." She says and winks at you. She leans back and pulls her father into a kiss, sucking out his soul. With his soul torn out and sent to Lilith, your father sheds his mortality and climaxes. Rhonda moans into his mouth and shudders as litres of daemon cum fill her womb and make her stomach bulge. The incubus father grabs her breasts and pulls her tighter against his chest as he keeps filling her up. The crimson harlot shiver and spasm from her own climax. Pushing back against her father and making him fall on his back, shattering the bed. The incestous kiss breaks as the couple trash violently. Your mother crawls to them and as the daemon dick finally pops out of the abused cunt and black cum begins to drain out, she happily starts to clean up the mess. For a mortal, the succubus tongue on still sensitive privates would have been too much, but the daemons simply laugh and beg for more between husky moans.

You take your time fucking your mother in the ass while she is cleaning up the mess and plunge your tail in her cunt. A happy bonding experience for the family, but with your first steps done, it will soon be time to spread the blessing elsewhere as well.