~That One Night~ "YORIIZAN"

A Demon Prince And His Bodyguard

heyyy! Uhm so I know I haven't posted in a long time but it's due to stress of many things personal, exams, studying, etc, and I never had motivation to write but now I do! So I hope you enjoy this! It's just an alternative universe I had in my mind so none of this is cannon other then the characters- ALSO ITS A ONESHOT

WARNINGS: R18 content, older x younger(NOT PEDOPHILIA.), cursing, mentions of Lucifer ig, MY AU, Dark humor, etc

Muzan Kibutsuji was the son of Lucifer, yes that's right the devil himself, but he wasn't really like his father in many ways, they never saw eye to eye, especially not after Lucifer hired a bodyguard for muzan because he was too reckless- yoriichi tsugikuni was his name, he was stronger then the prince physically....and mentally. but let's just keep that between us mkay? He was impressive, he fit the role in so many ways, but the only problem was he was mortal(he's 29 btw just for info). That didn't matter to Lucifer though all he wanted was his stupid ass son to have someone to look out for him and keep him out of the let's just say, gruesome kind of trouble, Muzan had just turned 18, more of 1800 but in mortal years he's 18-, meaning he was finally an adult, he could do what he wants and have no rules, but that changed when his father asked him to come to his throne room

L: "Ah muzan. You finally decided to put aside other matters, take a seat"

M: *scoffs before sitting down on the chair* "so what's all this about you've had over 30 servents come to my door and disturb me, why did you want me here? I know damn well you don't want to spend time with me."

L: *sighs and grits his teeth* "..My dear boy. Remember that time you set my chamber on fire and burnt all of my valuables?"

M: "yeah?"

L: "..And the time you slept with with Asmodeus(sin of lust)and claimed he was a predator.?"

M: "Mhm..."

L: "The Rest are far to many to count in numbers, What I'm trying to prove is that You're too careless, I cannot have you acting like a child all the time. You're an adult now. An heir to the throne."

M: "so?"

L: *takes a deep breathe in* "SO...You need to start acting like one. And to insure that I hired a bodyguard for your to keep you out of trouble and maybe teach you some manners."

M: "WHAT.. I DO NOT NEED ANYONE TO PROTECT ME IM NOT A CHILD!!"

L: "WELL YOU SURELY ARE BEHAVING LIKE ONE.. NOW GET OUT OF MY SIGHT BEFORE I DO SOMETHING I REGRET. *Sigh* he'll arrive at your quarters in a while"

M: "f//ck you.."

Muzan storms off to basically his house back in the overworld mumbling to himself and mocking his father, he throws himself on the couch before taking a deep breath and calming down a bit, he picks up a book off the table and begans to read. 1 hour has passed and he here's a knock on his door he gets up knowing it's probably one of the stupid servants giving him more errands to run. He opens the door and yells out "WHAT DO YOU WANT." in a aggressive pissed off tone, He's taken aback at the tall man standing on his front porch because this isn't a servant. Infact. This isn't a demon at all but he was wearing their uniform(a suit with a type of marking on it) he finally snaps back to reality and realized who this is. It's the stupid  bodyguard. And a mortal too

Y: "Kibutsuji muzan I presume?,"

M: "Yes. What the f//ck do you want?"

Y: "I was assigned by supposedly your father. Now. I suppose introduction is of need, Yoriichi F. Tsugikuni(get it? C-Cuz The F stands for Faggo- Get it cuz he's a homo? Y'know? Nvm- I'm actually so sorry, I love queer people istg,) at your service"

M: "Pfft- What does the F stand for? Faggot?"

Yoriichi steps in MUZANS home and shuts the door behind him taking off his suit blazer and hanging it on the coat rack, damn he looked good in that blood red vest, the black dress shirt and suit pants, chain across the waist of the vest, and a darker red tie, his hair was extremely long, like he has never touched scissors in his life, put up in a high ponytail, muzan did think he was hot but shoved it off as a normal feeling

Y: "Do not underestimate me young prince, I have served beings beyond your beliefs and I do not fear you, so if you think rude manner will be useful in this situation then you are quite wrong."

Yoriichi grabs muzan by the wrist and pins him to the wall aggressively holding both of muzans hands above his head while gripping his jaw tightly  the air was think, but somehow. Filled with lust- muzan looked up at yoriichi with his eyes open wide. He was shocked by the sudden act

Y: "Anymore of that behavior and I'll have no choice but to either inform your father and let him handle the situation which will not be so pretty or punish you myself."

M: "......I.."

Y: "what was that?"

M: "...…..F//ck you! You don't tell what to do and what not!" *Muzan leans in closer and whispers* "so go f//cking choke on a massive.. 15 inch long f//cking CO-"

Muzan was cut off by yoriichi suddenly kissing him HARD on the lips, he resisted at first but, the hungry look on yoriichis face, his body, the way he was holding him, his taste, he couldn't, he kissed back gently before yoriichi aggressively opened muzans mouth(he was holding his jaw btw if you paid attention so that's how-) and slid his tounge inside, he explored every crevice of the younger mans mouth as he whimpered underneath him, he broke the kiss both of them were out of breathe,

M: "w-why did y-you do that!?"

Y: "your punishment. And it's not over ."

M: "My Punishment?! What am I? 5?!!"

Y: "Ew you would do that to a 5 year old??"

M: "NOT WHAT I MEANT.."

Y: "just keep quiet and take it like a good boy~"(I just cringed so hard. God what are you doing jazz-)

Yoriichi began gently unbuttoning muzans shirt(erm let's keep in mind that he was only Wearing his dress shirt and some shorts,) he took it off him and gently caressed his pale skin while still making out with him, he kissed down towards his neck, suckling and licking all over leaving hickeys, as if he was a predator marking his prey, he savored his taste and scent kissing down to his collar bone then to his hardened nipples he took one in his mouth making the boy yelp in surprise, it felt good, he continued to suck at muzans nipple making him moan loudly he then kissed down to his stomach and then to that SNATCHED waist of his,(imagine meeting someone who's supposedly there to be your body guard, and they literally do the opposite and destroy your body-) he kisses the princes hardened cock thought his tight shorts, he gets back up and hold Muzan close applying gentle kisses on his neck while caressing his cock, muzan moans and grips hard onto yoriichis back

M: "i-is this a punishment or a reward damn it?"

Y: "I genuinely do not know and I don't give a f//ck."

Yoriichi then undresses himself until he is only in pants and boxers while muzan is already bare naked, he kisses muzan before picking him up and laying him down on the couch, he looked like a victorian goddess in that position, and goddamn his body. He then unexpectedly sticks his ring and middle finger into muzans mouth, the boy obeyed and sucked on the older mans fingers coating them in saliva, yoriichi pulled away before shoving them into muzans entrance making him moan in pleasure, he starts fingering him in a scissoring motion hitting muzans prostate, after a few minutes he pulled his fingers out and almost immediately shoved his entire 11 inches in, muzan gasped and he felt his knees go weak, it felt as if his entire bottom half was full, yoriichi began thrusting hard in and out of muzan in a steady pace, muzans moans filled up the empty living room, it felt so good to have his body used this way, yoriichi ended up c//mming after a few minutes followed by muzan, they then went a few rounds in the bedroom before falling asleep, muzan ended up waking up with a almost broken back, ass leaking with semen, hair messy, mind dead, and a hot man who's the cause of all of this sleeping next to him👍✨

Word count: 1520

Stayed up till 7:57 for this yall, SO YOU BETTER ENJOY IT, I got so tired at the end so it was rushed but I might fix it tmrw. Also gimme suggestions for the next chapter cuz I have 0 ideas- I BEG..