[Be prepared foe some... educational +18 stuff]
"So, darling, where we're going~?"
"England, i wanna do a few things... Then we're going to do more things, i wanna get a few things." Zehanpuryu hummed, it's been a few days (7 days) after Erasmus freed himself from his bindings, they had dinner (With Erasmus drinking his blood and almost fainting from how delicious it was, at least according to him), they both bathed (In different showers, much to Erasmus sadness as he wanted to tease him more), and they both had a few minutes to prepare themselves, wear their clothes and now they were before the door that would bring them out to the world of Harry Potter, where a month has gone by where Zehan let loose a few of his dragons with the objective of catching Newt Scamander's attention. "Let's go." He offered his hand to Erasmus, who blushed at the minimal gesture of affection that Zehan would express unknowingly to him.
Like the way he smiled when writing something, the way he looked at the plushies and smiled like a small child, the way his muscles would flex and tense whenever Erasmus touched his body, as if he was nervous- the blush was always there as well, and he smelled so enticing whenever he kissed his skin! These seven days they spent together were more than enough to show Erasmus that Zehan was terribly innocent when it comes to love, he would blush and be shy in every gesture, he was gentle and caring, and most importantly: He was dominant when he needed to. There was this time, on the 6th day, when Erasmus was sucking his blood and dry humping him to tease him- He was Instantly thrown on the bed and pressed down by the larger man that somehow reduced him to a weak mess as he grasped Erasmus' throbbing hard dick and he helped him reach his release by slowly and teasingly rub the head of the poor vampire's penis.
It was a sweet torture that he loved because the very next day he wanted to reciprocate and also help Zehanpuryu with his boner (Because last time he just went to fap on the bathroom), and oh God... It was an hour ago, where he was sucking onto Zehan's blood again, with gusto and making sure to moan on his ear every time, acting very horny and bothered to see if he could get lucky with that dick inside his ass, but no-
-Flashback: 1 Hour Ago-
"Fuck~" Erasmus moaned, his lips red of the blood of his husband, it was delicious and rich in life energy, he was clearly addicted to drinking it up from the source was deliciously more enticing because he could get reactions from Zehan, who was holding him by the waist as Erasmus wrapped his arms around his neck- "Ahn~ This hits the spot~" Just then Erasmus felt that Zehan was trying to get up, probably to take care of his boner, but no, he wouldn't let him this time! Pushing him down further into the black couch they were in, Erasmus said: "Dear, please, let me take care of that for you~" The bloodied grin he gave to Zehan must've been enough because he just stared at his face and said as he nodded his head: "Sure, but... Be careful."
He at first thought he said be careful like 'Be careful with your fangs', which he would be, but he didn't think he was talking about another thing- He came to rest onto his knees right in front of him, and when he looked at the dick- He was stunned, because it looked less intimidating from above, but now that he was at the right angle, he was sure that Zehanpuryu meant 'Be careful to not choke' or maybe he was telling him to be careful not to drown on his dick? Regardless of what he meant, Erasmus pulled down the boxer underwear he was wearing and watching in amazement as that dick escaped the containment that it was in previously- It was enormous, it was heavy also because it fell right into his face even though it looked hard, or maybe it wasn't as hard as it could be?
"Wow..." He whispered in awe at the sheer size and girth of the behemoth before his face, way bigger than anything he's ever seen- Well, his own dick was the only dick he's ever seen clearly, he has seen other naked men yes, but he did not stare at their dicks in fear of being hit, since homosexuality is not accepted at all- On the contrary, it is considered an abomination by society's standards. "So big..." The smell also was very strong, very musky and a little bit sweaty, it was absolutely dripping with this colorless liquid he knew as precome- His tongue touched the head of the penis, and alongside the delicious taste of the precome was the twitching the head did, raising up slowly-
Just as he watched in awe, it rose up and... Reached its full height.
Zehanpuryu Xathanael had every single aspect of his body at peak human... The biggest dick in the world is 18.5 iches when erect, with a girth of 10 iches- but that is not humanity's limit, no, but Zehanpuryu's size was the human limit- 20 inches, or 50 centimeters long, and with a girth of 12 inches, or 30 centimeters, this beast was so big he couldn't even dare to think about... Oh, who is he kidding? His throat will be so sore after this. "You've been hiding this big boy from me~?" Much to Erasmus' arousal, Zehan just stared at him with this sexy smirk to his face as he whispered: "It's all yours now, bitch- I can't fuck your ass yet because it would only be painful, but you can try to suck me, i wanna see that." Okay- here was the one he liked to see, the dominant guy that would always put him in his place- There was a hand on top of his head, he was being gently caressed by the fingers of his husband as he said: "Just be careful, m'kay?" Under all that lewd hotness, he still had time to be gentle and caring!
Lost of words, Erasmus just started slowly and carefully by the foreskin, he put it in his mouth and sucked on it, it was just skin, but it was sensitive skin, so he got a reaction from Zehan: "Good boy." A simple two words phrase that instantly got the poor and inexperienced Erasmus hard, he did not know what that meant, but he liked that... And apparently he must've blushed or moaned because Zehan was looking at him with this large grin to his lips as he patted Erasmus on the head, saying: "Baby boy, go on, I know you want to keep going... Just don't hurt yourself trying to swallow me whole, okay?" Erasmus did not make any promises.
He slowly, ever so gently and enticingly pulled down the foreskin to reveal the thick bulbous and large red head of the penis, so full of blood that he wanted to bite and such- But Zehan said not to bite, so he continued on, pushing until he felt himself gag- he stood there with about the majority of the head and few centimeters of the thickness in, but unable to go further than this without hurting himself and without help. He didn't need to breathe, so he just wanted Zehan to use his mouth and go home with it- Break his jaw with his dick, he wanted his to grasp and pull his hair before pulling his head back and deeply push his dick deep down on his throat, fucking his face eagerly.
He pulled his head back, and with a wet pop the head of the penis left his mouth, he looked at Zehan with tears on the corner of his eyes as he asked: "I... i want you to fuck my face." He sounded scared even to his own ears, but he also sounded eager, which is what he is feeling- "You sure?" Zehan grabbed his chin and made him look in the eyes, his green eyes stared deeply into his red ones, a pair of emeralds and a pair of rubies. "Yeah." He was nervous, so fucking nervous, but so aroused and excited at the idea that his throat would be used by Zehan in such a way- "Tap my thighs three times if you want me to stop, okay?" Setting a safe gesture which would make him stop was an amazing idea that showed how much he cared for him and how much he feared hurting him or going over his boundaries.
Oh shit, he forgot to establish boundaries.
Oh fuck it, he'll do it later, now he wants his head to be fucked and his throat destroyed.
"Well, open wide i guess." Zehan began to push his dick further down on Erasmus' throat, making the poor blondie gag for a second before the dick continued down his throat, he could feel the almost endless dick continue down his throat until it went down the laryngopharynx and went down the trachea, pressing his esophagus against the back of his neck and even cracked his jaw a little bit since the sheer girth couldn't be held by Eras' throat, so it just... Broke a little to accomodate that monster, and even Erasmus' eyes rolled to the back of his head as small tears started to slip out of the corners of his eyes, the dick was too big and thick, and yet he wanted more and more of that dick. "Fuck, what a fucking good throat you have, you can take so much-" Then, and only then did he notice that it wasn't even halfway through! "You wanna everything? Then i would have to push it down your esophagus, y'know?"
he was going a little bit down his trachea because it was the biggest hole there, and also he didn't know if the entrance to his esophagus- The upper esophageal sphincter would handle his invasion without breaking, because that thing wasn't a big entrance! He could tear it, and then he would hurt his beloved. "Do you really want it? One tap for yes, two for no, three to stop." Communication was important, and here he was giving him opportunities to talk again, with a single tap to the thigh, Zehan knew that his husband wanted him to keep going: "You're really a brave little bitch, aren't you my little baby boy?" And once again, he saw that shiver run down Erasmus slutty self as he closed his eyes in bliss- He was a pervert too, submissive in nature, he loved being called baby or baby boy, and he saw his body react to when he pulled his hair. Maybe he wanted to take him whole because it hurts, and he is just a masochist, or maybe he only has a slight pain kink and is not full on 'Please spank me daddy' territory... Yet.
"Such a good bitch." He didn't know why, but he liked insulting him a little, he was loving playing the dominant side of things and did not mind playing the submissive in the future. "Now... Let me try." It was rather easy to push his dick through the esophageal sphincter, and it was even easier to go down till Erasmus' nose was against his crotch, burying into his pubes- "Holy hell, you're such a good slut baby-" Erasmus had slobber and saliva going down the corner of his lips and tears through his eyes, his wetness even dripped from his beard as well. "I'll fulfill your wish now..." He pulled back his penis until he heard the popping sound of his dick leaving Eras' mouth- and then he put it back in! The distance between Erasmus' throat and the end of his esophagus is 21 inches, meaning he could take Zehanpuryu's full 20 inches long dick.
For you to have an idea, a horse's penis is in average 19 iches- So, a human's peak size is bigger than a horse's.
[Author Note:
The biggest dick in the world (As far as i found) is 18.5 inches long and 10 thick, so, yeah.
Horses have the sheer size of 19 inches (50 centimeters) long and 6 (15 centimeters) thick...]