But... Sivora is unphased by all of this. Thanks to her being part succubus, just about any and all things considered lewd are extremely normalized for her. Even some pretty abnormal concepts, like bestiality for instance, for someone to be into it, is no odder than being into titties. And everyone can love a nice pair of breasts, even women. This mindset however, also means that she has no issue with being lewd with her own daughter.
After breakfast, you and "Jenny" return to your bedroom, which you just now are informed is actually a special room that is impossible to gather any information about what happens inside of it from the outside, thanks to a special kind of magic used. Only those who are inside of it, know what truely happens inside. Even sound is completely blocked from exiting. It is the perfect place, set up just for the two of you, well, more so you than Jenny now, as you have been "blessed" with a secret bodily addition.
Once inside the room, Jenny eases her cover a bit and allows some of Sivora to slip out, happy to start being your proper Mother, even if just slightly. "Now then Sweetie, let me help get you off. Dicks are my specialty you know."
"N-no thanks, I can handle it myself." You say a few seconds after she touches your cock. You are quite flustered, but not because your mother was offering to help make you cum, but because you had nearly went along with it. 'Get it together Alicia, she is your Mom, no matter how hot she is!' You think to yourself, in a poor attempt to convince yourself not to just go along with it.
You are struggling though. Partly due to your male brain being EXTREMELY attracted to your Mom's true demonic-elven form. Plus, Jenny is quite pretty too. She may not have breasts quite as big as you, but she is the only other girl with bigger than a C cup bust that you have met, even if it is due to her being your disguised Mother.
You are starting to lose to your own thoughts though. 'Ahhh, I bet my cock would feel really nice in between her tits... No! Stop it Alicia! Do not start thinking about it. She is your Mother, no matter how sexy she is, or how hard you currently are, or how good her tongue feels...!' "Mo-Jenny! What are you doing!" You cry out, pushing her out from underneath your outfit.
With a pouting face, Jenny slurps back in her forked tongue and folds her arms underneath her boobs, obviously attempting to arouse you with them. "Aw, why not? I used to do this for my little sister all the time. I know all the best methods on how to make a cock this size feel the absolute best. So just let me do this for you."
'Oh my god, why is she so damn perfect. Why did she have to be my own Mom?... Maybe, just a bit wouldn't hurt, right?' You are quickly losing to your perversions as the longer your own mother attempts to seduce you, the harder it is getting to push her away. You really want to do it with Jenny. You actually have for a long time now, but since you both are girls, you had never brought up the topic.
But now everything is different. If you wanted, you could likely even have sex, or do even more lewd things than before. Plus, since you too are some part succubus, wouldn't that make the whole part about being able to fuck anyone true for you as well? Succubi do not need to care about incest after all... and right now, she is Jenny, not your Mom. And she is doing it again!
You failed again to notice Jenny begin licking your shaft with her extremely long, forked tongue that your Mom's demonic form has. You can no longer bring yourself to push her off as it just feels so damn good. 'Damn it, I truely must be her daughter, if I am actually willing to do this, huh.' You think to yourself after finally losing the internal struggle to your own perverted desires.
Now with you having a full blown erection, Jenny removes her outfit, and yours as well before she pushes you down onto your back on top of your bed. She climbs up, and gets on top of you, with your massive erection nestled inbetween her tits. "Let Mamma teach you the proper way to tittyfuck your cock" says Jenny with a really perverted grin. She is so into this that it is turning you on even more for some reason.
Jenny begins to give you an absolutely amazing tittyfuck, using not just her own, but your tits as well in the process. Having your cock slide inbetween the four breasts was such an amazing feeling that you are now worried that you may become addicted to it. Both of you are panting loudly as now you and her are equally into doing this. You can't help but feel foolish for trying to deny yourself this experience before. Who cares if she is your own Mother, she is a fucking gorgeous half-succubus aho until just a few minutes ago was wearing a maid uniform. And she has ample personal experience at handling huge cocks to boot. Fuck incest, this is just the demon part of you that allows you to do this. It isn't technically incest if it is between 2 demons after all.
So with your new found resolve, you let yourself be pulled into the crazy world of succubi lead debauchery that your Mom was quickly leading you towards. And it is only now that it happens. The moment you accept this new part of yourself, your body undergoes a few changes. To summarize it, your sclera turns black, a pair of wings push out from behind your hips, your tongue becomes like your Mom's, your ears lengthen and become pointed. You also feel a tail push out of your lower back, and finally you grow curved horns, matching your Mom's pair that her demonic form has. Jenny is momentarily stunned by this new development, but only for a second as she hugs you and resumes having sex with you almost instantly.
"Ha, who would have guessed that you would awaken a demonic form too? Hah, guess I will have to show you how to undo it, or you will never be able to leave this room." Chuckles Jenny with noticable happiness.
You guess that your Mom must be overjoyed that her daughter resembles her even more now. But you are horny, and do not want to stop to consider that part right now. So you lift her up and attempt to fuck her, but she stops you with her own tail, and with a seductive grin leans down and whispers into your ear. "That hole is exclusively for you Father's use. So do not even think about touching it. You can do it in my ass or my mouth if you wish, though I can also fuck you instead too. But my pussy is off limits. Understand?" You nod and let her go, leaving her just floating in the air as she levitated herself with her own magic, a secondary defense in case you didn't listen to her warning. She deactivates it though and lands on your stomach, weightlessly. So, who will be screwing who, Alicia?"