It is inevitable

Your demon sperm loads Bern's mouth with a warm and overwhleming sensation as her soul leaves her body and you devour it. Your body changes. Your skin turns darker, your cock increases slightly in width and length and your muscles are now as defined as they can be. Your phallic tail also changes in proportion to your demon state. Bern succumbs to the lust and her body convulses. She spasms, causing Jo to stop. We both watch Bern turn a blood red colour and her body smoothen and her muscles tone. Her breasts increase in size and her lips become full and lucious. Bern screams with delight, but Jo has stopped.

Jo backs off, unsure what to do. You know that Lilith has come close to infecting her but just some more persuasion is needed. "Jo, your friend has succumb and loves it." Bern fingers herself and strokes your cock. "Imagine fucking for a living Jo..." As you try to sweet talk her to the dark side, your phalic tail brushes up her leg and circles around her tight ass. Jo almost doesn't notice your tail's advances and is looking lustfully into her former lover's demon eyes. "Come on Jo, join Bern and double team helpless humans eager for succubus pussy."

Jo just moans as your tail has brushed against her pussy lips. Bern crawls to Jo who is on her hands and knees and kisses her mouth forcefully. Jo returns the **** and falls to the side, fingering herself. You remove the tail and decide your cock needs some more human pussy. You quickly move behind Jo and spread her legs. While lying down, you slide your now 11 inch cock into her sweet, half human pussy. She squeals and grunts and moans. She loves it. You kiss her neck, drawing blood almost like a vampire. Bern stands up and Jo attacks her demon pussy.

The scene becomes a Lilith threesome, rapidly converting another human to the Lilith side. Jo rubs her clit faster and faster as you ram your thick cock into her pussy. You decide now is the time to cum and seconds later, your sperm infects the horny and submissive Jo. She continues to likc Bern as her tongue increases in length and goes deeper. Jo is transforming into a beautiful succubus with a long mane of crimson hair and impressive wings.

You continue to fuck the duo in various combinations: You licking Jo while fucking Bern, Bern and Jo sucking your cock, Jo riding you as you lick Bern etc. It continues for hours until you all are sure that it's time to move on. Your last dose of sperm falls on Jo's chest and you leave the couple with the image of your two masterpieces sharing your cum. You leave the room and transform back into your human state. It's time for a change of scene.