Hazbin Hotel: Devil System[R-18]

Dante was pissed as hell that someone had interrupted his carnal lustful taboo sexual moment with demoness princess sister. He was so close to deflowering her and taking her virginity with his massive 17inch demon dragon D, he was damn close to feeling her warm wet super tight virgin pussy and her love tunnels, but someone had interrupt and fucked up the lustful demonic taboo sex-sacrifice! What's worse the person who opened the door knew Charlie!

'Dammit whoever is at the fucking door I am about to slaughter them! No mercy, I will rip their fucking throat out with my demon dragon claws and demon powers. But at least I was able to do a lot of sinful and lust things to Charlie's body, I grabbed and squeezed her tits, smacked her butt, rubbed her thick thighs, tongued-kissed her, bit her neck, and was rubbing the top of her virgin pussy and was close to fingering her virgin pussy and then unleashing my 17inch mighty demon dragon deep inside her virgin demoness princess pussy, I for sure completed the mission,' Dante thinks to himself as he quickly turns and looks over to the open door of Charlie's room to see who the fuck opened the door. 'I can probably make a system skill with my Devil System to mind control or mind erase whoever is at the door, but I have to act fast, before the situation gets worse,' Dante's assassin and demon dragon instincts was at full force, whoever was at the door was fucked. 

[You have completed the mission [Sister Leveling!] and [You have almost tamed your hot sister Charlie Morningstar!] [You have gained 3,000 XP!] 

You gain 1 Level! You have now Level:2! 

You now can select your system class! [Class]: Mage, Necromancer, Knight, Warrior, Paladin, Assassin, Thief, Demon Overlord, 

The System A.I screen alerts him it was like a holographic RPG Stats screen floating over Dante's eyes only Dante could see his Devil System. [The system A.I looks like a anime version of Death from DC, the pale goth beauty from DC cartoon show, here I found a picture of how the succubus A.I looks like here!]

[New mission]: [Take your sister's virginity! Tame and ravage the Princess of Hell's pussy! Make her your demoness bitch!] [ You gain 6,666 Devil Points if you take Charlie Morningstar's virginity!] [Punishement for not accepting mission] No Punishment but if you deny this mission you will lose on even more powerful leveling up your Devil System and becoming even more powerful! You should really take the risk! After all you are in Hell there is no fucking rules here! You can do whatever the fuck you want!] 

'Shit of course I was going to fuck Charlie's virgin pussy and take her virginity but things got complicated quick, change of plans, I will just build a strong romance and relationship with my young sister, and this will be the perfect time to gain even more power, I can steal all the powers from many demons and even kill demons to absorb into my Devil System and create my own undead demon army, become like a Necromancer like Solo Leveling, for the System class I will pick between Necromancer and Mage both every OP options! I can even fuse these two Classes! But first let me deal with who is at the door, no one will know about my lustful bonding with Charlie the princess of Hell, it will shock everyone in this world of Hell, then again between royalty its normal like Game of Thrones shit, but whatever no one should know about our dark secret,' Dante looks at the door.

"What the fuck Charlie! How could you! You on cheating on me with him! I thought we were together! And is that your brother! WHAT THE FUCK IS GOING ON!? Tu bastardo! Pedazo de mierda!" A angry Latina girl with long flowing white hair and pink eyes and tanned skin screams out in shock. She also had a grey X- eyepatch on her left eye, it had seemed someone had stabbed her eye out. 

"Vaggie! It's not what you think!" Charlie shouts out as she blushes and covers up her half-naked busty pale maiden doll body, her inner demon and sinful lust had gotten the better of her as she let her own big brother Dante touch in her places she has never been touched before, not even Vaggie who is currently her girlfriend has done this to her! Well now soon to be Ex-Girlfriend after what she had just saw! In Vaggie's view she sees Dante's muscular and tall demon dragon dominantly standing over and on top of Charlie's half-naked body she was only wearing a red corset bra and panties! And Dante was only wearing his black jeans! shirtless and all with a massive demonic boner, he was fast enough to at least put on his pants! 

'So it is Vaggie, Charlie's girlfriend, fucking great, now what I do, mind control her? Make her my slave? Or erase her mind from this sight?' Dante quickly thinks what he should with Vaggie.

Now things are getting very dramatics and even hotter in hell! 

[Here is pic of Vaggie]: 

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A/N: Idk if I will do Charlie + Vaggie + Dante[MC] R-18 and if I do I will post it only on my patreon cause it will be hardcore and sexy as fuck, I might post a ecchi R-18 chapter next idk I won't spoil anything, from now on I write whatever the fuck I want, fuck listening to the readers, I mean I will listen to some advice and suggestions even romance interest but this is my R-18 Hazbin + Helluva Boss fic and I will it make epic! No more spoilers! Also the top 1 collection fic the DxD one is fucking trash I swear everyone writes trash DxD and Fate fics I am probably going to post a R-18 DxD/Fate fanfic on Sunday and show everyone how the fuck a real DxD/Fate fanfic is done and it will be epic it will be a DxD/Fate: Gacha System fic! 

Now I wonder will the MC and his sister Charlie Morningstar get along after this crazy moment!? Or will they fight! Lol this will be interesting... Or does MC have more sisters than just Charlie and a more moms and a lot more demon bloodline powers!... Hmmmm no spoilers! 

Next chapter Vaggie Vs Dante the Demon Prince/ Demon King sounds better or Demon Lord!

A/N: Yeah the MC is a anti-hero not full on villain yet but he can be both, yes he is evil but he won't do evil things to Charlie and do extreme harmful things yet instead he will build a romantic relationship with her as brother and sister of course coughs wincest, though he do did lustful things to her this chapter but was so he can a even more powerful Demon Lord so he can conquer hell! So yes the MC is evil he is a legit pro assassin who killed hundreds of life in Earth, but that doesn't mean he can't change, think of MC as Adam or Lucifer he has insane chaotic power and he has to decide what to do with his OP Demon Powers! But remember MC is still Level:1 the MC is strong like Demon Overlord level but not yet on the same level as Lucifer or Adam I will say MC is at same level as Alastor or higher! Since he is not bound by a contract! [Spoilers but I am sure Alastor formed a contract with Lilith Charlie's mom]

MORE NEW CHAPTERS COMING OUT TODAY!!! LOTS ACTION, GORE, DARK MOMENTS AND R-18 CONTENT LATER ONCE THE ROMANCE BEGINS! I dont know what will be the max harem or if there will be any harem you guys vote on that.

A/N: Don't worry later on story you can customize how MC will look like more, he is a Demon after all and can change his appearance anytime he wants!

A/N: Next chapter I will jump right into the Hazbin Hotel + Helluva boss world, it will be a fusion of both worlds and many sexy girl characters will appear in this R-18 Hazbin Hotel fanfic from both shows of course even Loona best goth wolf girl! The goth furry queen! 

MORE CHAPTERS COMING OUT TODAY! THIS WILL BE THE BEST R-18 Hazbin Hotel fanfic! will there will be wincest with MC and Charlie Morningstar since he will reborn as her brother? Idk pay me $50,000! lol what a crazy Hazbin Hotel meme that was!

Oh yeah Lute is best girl! And so is Loona! And Verosika Mayday!

You will also see Angel dust and a lot of sexy and cool characters like Cherry Bomb from Hazbin Hotel and Millie from Helluva Boss!