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Even if I burn in hell

Summary:

What is the dumbest thing a horny teenage boy could do? Well, Tenma Tsukasa just summoned a demon to fuck, but he didn't expect him to be a guy! Should he run away, or should he stay and try out some new experiences?

Notes:

Good evening, people. With all my pleasure, i bring to you one more of my horny fantasies. Honestly, I'm not all that big with writing bottom Rui/top Tsukasa(tho i like it too), but i just went CRAZY with this one. I had a lot of fun writing the first and the second chapter (that is going to be released very soon), so i hope it will be a fun reading as well. Rui only appears in the second chapter along with the smut, so please be patient! Enjoy the first one and have a wonderful night~(人*´∀`)。*゚+

Chapter 1: A dumb decision?

Chapter Text

What's the biggest stupidity a horny teenage boy could do? Get caught jerking off by his parents? Impregnate a girl by "accident"? Catch a STD? Hire a demon to fuck with him? Nah, this last one seems too impossible to even be an option.
Though that's the situation Tenma Tsukasa is in. Yeah, this boy decided that it was a great idea to summon a demon to fuck with him because he was having a "horny crisis". But how the hell did he even find this idea?
He was in the middle of one of his daily several hour porn sessions, almost burning his dick from rubbing and never getting satisfied. Among the multiple ads and baits, he found one that standed out specially. "Lose your virginity with a hot demon now!", and an appealing drawing of a sexy demon girl. Well, anyone with a normal functioning brain would choose to ignore it, assuming that it's another fake announcement. But Tsukasa wasn't just "anyone". He was The Tenma Tsukasa, meaning, not normal.
He bit his lip, having the capacity to think for a few moments about his next decision. He clicked the link, being directed to a website written fully in a language completely unknown to him. He managed to understand at least some key words. "Succubus" and "Incubus". Seemed like demon names, most likely the ones being offered to fuck. He had no idea what the difference between these two names were, so he just decided to choose randomly and see what would happen.
"Incubus" was the option he chose. He didn't even think of searching up anything, he got so carried away by his own horniness he didn't leave that site. There was some more stuff to pick and choose in that next page, but this time he couldn't understand anything. Some of the words were highlighted in different colors, maybe it was supposed to sign the appearance of the demons available? Well, Tsukasa didn't mind what they would look like, as long as they were hot. And he didn't doubt the announcement that said loud and clear "hot demons". He knew demons were full of temptations, so that was probably true. With that in mind, he just picked a random color, which was purple, typed his email and name and submitted. Some more words he couldn't understand and the number "5". He assumed it meant his demon would be sent in 5 days. His heart pounded after he realized what he did. Curse his dumb needy dick!
The next day, he got an email from that same site. Again, that same unknown language, but this time it had pictures of some items. Candles, blankets, body oils, coal, purple and yellow gemstones... It was pretty obvious they were needed for the summoning ritual. He could identify each of them just by their appearance, so he decided to note and go find them as soon as possible. 4 days.
The next day, his mom asked him to go buy some supplies for her. So lucky, he had a chance to go buy everything he needed without being suspected. He opened his piggy bank, taking all the money he had. He really was going to spend all of it for some ass…
He left his house, going straight to the nearest market. He bought the things his mom needed and some of the things he needed for the ritual. He didn't find the gemstones and the candles, though. He walked around the city, trying to find a place where he could probably find them. After some minutes of looking here and there, he found a little store he never noticed was there before. It was entirely made of wood, the inside was lit only by candles. Looked like a perfect place to find his items. He entered, a bit hesitant. He greeted the old lady that resided there, still a bit intimidated. He searched around, sighing in relief when he actually found the two types of gem he needed and that specific candle. It had a strong scent that itched his nose a bit, he held back a sneeze. He held everything carefully, taking out his money and giving it to the old lady. Yeah, he really had to spend all the money he saved…
He left the store with a carefully tied bag, and of course the bags with the things his mother asked for. He arrived home, greeting his mom with a smile and giving what he bought for her. He sneaked into his room with the bag from that strange store, luckily not being noticed by his mom. He turned on his laptop, checking his mailbox. Another email from that pornographic site, now sending him a step-by-step guide for the ritual. The images were pretty clear, he didn't even mind the language anymore. He observed every picture attentively, keeping every step in mind. He reached the end of the email, seeing the last message. 3 days.
Tsukasa woke up the next day, immediately checking his mailbox again to see if anything new appeared. Nothing yet. He sighed, he really was that excited to see a demon he didn't even know if they were real… He cleaned himself, dressed up, ate his breakfast and left for school. It was Friday, so tomorrow he would finally have a day to focus 100% on what lived rent free in his mind.
The boy was lucky he did well in school, because if he didn't he would be doomed. Every single class that day was boring, way too boring, even more boring than normal. Maybe it was because he was so anxious to go home and check his emails again? No, he denied. He wasn't anxious at all, Tenma Tsukasa doesn't let himself get anxious this easily! He thought.
School was finally over, he ran to his house as fast as he could. He opened the door harshly, startling his mother. He apologized, extremely ashamed. She looked at him with a curious gaze. He really was acting weird lately…
He went straight to his room, opening his closet to check if all his supplies were still there. Good, they were all in place. He went to his laptop as usual, seeing that received a new email. He sighed before opening it, being surprised by the content inside.
Practically all that was in there was a picture of a place he knew very well. It was a wasteland 50 minutes away from his house. He shivered. How did they know his localisation?! Oh, well, he gave the site his email address and full name, so it was obvious how they had it… Still, he got a bit scared. But he chose to do it, he had to deal with the danger. He noticed the small text under the picture. Yeah, it was obvious he would have to go to this place to make the ritual. He read the last words of the email before closing it. 2 days.
He woke up late the next day. It was finally Saturday, and the last day before he would meet his demon and lose his virginity to them. He jumped out of his bed, sitting in front of his laptop and opening the browser. He searched up how to prepare for the first time and how to pleasure a woman… Well, he assumed the demon being sent to him is going to be female, and he had this in his mind all along. He was hoping for no sudden surprises, but maybe he wouldn't really mind if it was a guy… Wait, no! He is straight. Tsukasa is 100% heterosexual, no interest in guys! At least that's how he wanted it to be. Anyway, he searched up for everything he needed. Preparation, tips and all. He went out to buy one thing he stupidly forgot: condoms.
He arrived at the pharmacy to buy condoms and lube, which he realized was also necessary. He carefully analyzed every type of condoms available. Flaming? Freezing? Minty? There were so many options, his inexperienced mind got confused. He ended up just buying a regular strawberry flavored one.
He went back to his house after getting everything he needed. He ignored his mom in the kitchen, running to his room to put his stuff in the closet. He helped his mother with some tasks when he left his room. He was a good son, after all. At the time he was finished, the moon was rising to the sky. He took a shower and dressed himself in his room. After finally finishing everything, he checked his emails. Yes, another email from that site as usual. This time it didn't have any images, so Tsukasa struggled to understand. Though, one specific part caught his attention. "Kamishiro Rui". Was that the name of the demon he was going to meet? Okay, so that email was describing them. Again, Tsukasa didn't really mind how they looked, as long as they were hot. He closed the page, laying on his bed to rest. 1 day.
Finally, the last day of waiting. Tsukasa almost couldn't sleep at night, anxiously awaiting for the email announcing that his wait was over. He hadn't received any message, though, so he decided to wait for the beginning evening, which was the time all the other emails were sent. He walked around his house in circles, thinking and rethinking his actions. What if he was scammed? Why did he even decide to do that in the first place? What if someone is planning to kill him and sell his organs on the dark market? He was starting to get even more anxious, but he didn't want to be a coward. He was decided, he was going to the wasteland and do that stupid ritual. If it was real, then he would have the chance to finally lose his virginity to someone really hot! He wouldn't give it up now.
And he waited, waited and waited, still walking in circles around his house trying to distract himself with random things. His anxiety was so obvious his mom and his sister asked him if he was sick. He assured them everything was okay and there was nothing they should worry about. What a liar, he was just about to summon a fucking demon!
Some hours passed, the sun was setting. He grabbed his backpack, putting all the items he needed in there. He told his mother he needed to see a classmate for a project they had next week, another lie that she ate up easily. He took his bicycle, finally making his way to the assigned place for the ritual.
After riding all the way, he finally stopped in the right location. There were some old building wreckage around, bushes that hadn't been pruned in years and the sound of frogs croaking in a nearby lake. That place was scary, especially at night. At this point, Tsukasa wasn't even sure of what he was expecting.
Finally, he settled everything on the floor right in the middle of the empty area. He made a circle on the floor with coal, placed the gemstones inside smaller circles in it, lit up the candles and opened the body oil bottle, taking his shirt off and spreading some of the content on his body. He placed the soft blankets in the middle of the circle, carefully. Okay, everything was ready. He kneeled in front of the circle. His phone vibrated, an email was sent. He checked it. Finally, the last email he needed from that site. He closed his eyes, trying to calm himself down and gather all the energy he needed. It is time.
0 days. Good luck, Tenma Tsukasa.