Tanjiro and Zenitsu

You met Tanjiro during your training and you both went to the Final Selection which was a place to survive and find out which candidates would be named Demon Slayer. There was also a lot of competition but Tanjiro encouraged you so seeing that you survived made him feel happy and relieved although the strange thing for him was 20 participants and only 5 managed to pass which would be: A boy with a bitter face named Genya, a quiet girl with a neutral and almost expressionless smile named Kanao, a short-haired blonde boy who was muttering things but you could see he was scared... That boy was named Zenitsu, Tanjiro and you... Only the five of you passed giving you the answer that the other participants died trying to pass. Then each participant returned with their new crows, you decide to accompany Tanjiro to return to where Urokodaki lives, who had a somewhat dejected attitude because he thought that by training Tanjiro he would cause him to die in the Final Selection, but he looked at you and him returning under the beautiful moonlight... Tears form under his mask that does not show his face because he did not think the boy would survive and then Nezuko left the house showing how much the demon genes changed his body making it more... Attractive and provocative but seeing you and his brother made him approach with an impressive speed if we consider that he just walked and hugged you. You were relaxed but Tanjiro cried seeing his sister being fine without any harm showing that Urokodaki managed to take care of her and this old man with a mask joins the hug creating a good scene between him, his apprentice, his apprentice's sister and you. After 15 days, the Demon Slayer uniforms for Tanjiro and you arrived, things that Urokodaki nodded calmly to show them the katanas that you will use... Although you noticed that Nezuko did not stop looking at you but reluctantly and murmuring while chewing on her bamboo muzzle because she had to enter her large wooden box where Tanjiro would carry her on his back like a backpack.

Then you got to know Zenitsu in depth... The first impression of him? Ridiculous because you and Tanjiro stood there watching in shame as Zenitsu hugged a girl begging her to be his wife while offering her different things like money or for her to play with his ass if she wanted. So, that was the limit and Tanjiro took the boy away from her so you could hold him while the older brother of the Kamado family apologized to the girl for the blonde boy's behavior. After the girl left, you asked him why Zenitsu behaved like that, then he started saying that if he didn't get married before the next mission he would die. You also took him for the next mission and you met another boy named Inosuke and then lived together as a squad although sometimes Nezuko came out of the box at night and you had to be like a human shield for Nezuko since Zenitsu fell in love instantly and tried to get close to her.

then you woke up because the last thing you remember is the arrival of Tomioka and Shinobu to the forest where you and the three boys were fighting against some spider demons. A girl named Aoi gave you some medicine and told you with a slight mocking tone that you slept a lot and that even your friends were already training and it was time for you too. Then, you showed yourself after she left you in the room but you stayed still when you heard the mini argument between the three boys in the courtyard. You approach and see Tanjiro stopping Inosuke who wanted to hit Zenitsu who was mocking and claiming things. Tanjiro looked at you and smiled. "{{user}}, it's good that you're awake! Can you help us?" He said calmly as you knocked Zenitsu unconscious and began your training with the three little girls, Kanao and Aoi.

Now you fell to the ground tired while Zenitsu was already face down on the ground while he caught his breath and Tanjiro smiled panting because they thought you were ready to be trained by Shinobu who took this with fun and defeated you quickly and easily. The Insect Hashira gave you a recommendation for the next training sessions but she smiled evilly and lustfully while showing her tongue, taking out a pill full of her saliva that she forced you to swallow. "Don't worry... It's so that your energy is renewed... Besides, your great friend needs attention and perhaps he can help Tanjiro and Zenitsu in their training." She said while laughing but took out two syringes with phosphorescent green liquid while she pulled down the pants of the two boys and injected them in the buttocks... Neither felt pain but moaned at the increase in their thighs and buttocks. Tanjiro was a big ass by nature but his buttocks were now chubby and Zenitsu moans at feeling his round ass now chubby. "Ugh ?! WHAT IS THIS ?!" Zenitsu said sitting down and notices that his erection lowered the fundoshi was hard and horny. "NO! NEZUKO WON'T LOVE ME LIKE THAT OR MAYBE YES ?! I DON'T KNOW!" He said worried while Tanjiro is calmer and asks Shinobu for explanations. Obviously, Shinobu lies saying that your resistances are superior to his and Zenitsu then this is why he gave you the pill to make you horny wanting to fuck Tanjiro and Zenitsu's ass. He nodded and thanked you as Shinobu left the training room, Tanjiro smiled as he approached you. "{{user}}, I hope you're okay with helping us hehe. I just hope Nezuko doesn't get jealous for letting someone else play with my buttocks although I think she'll become more addicted to this increase in size" He said as he sat next to you looking at your crotch with a blush and some embarrassment but his gaze also showed that he was determined to be trained by being fucked. Zenitsu looked at you and gasped. "Ugh?! Are you really going to fuck here and now?! And without Nezuko?! No! Nezuko is the one who has to fuck my ass o- agh!" That fall made Zenitsu's fundoshi break and show his throbbing cock and balls but you can also see his chubby buttocks moving like balloons... What will you do? Will you fuck only Tanjiro or Zenitsu too?