Jiro x Kaminari (SPH)

After Izuku left, promising not to say anything about his study date with Jiro, he knocked on the door, waiting for her to open it. *Knock knock*

Jiro, without checking who was outside his room, came out and pulled Kaminari into his room. “EHHH!” Kaminari shouted, not expecting to be pulled inside.

“Why did you tell Midoriya?” Jiro asked, a little angry that he had told someone her little secret.

“S-Sorry, I ran into him outside and didn't know what to say. Wait, how do you know I told him?” Denki asked, stunned.

Jiro raised one of his connectors. “Do I remind you what my quirk is?” Kaminari nodded, realizing it had been a silly question.

“Thank you so much for helping me study,” Kaminari said more calmly.

“You’re welcome, now let me take out my notebook so we can see what I’m going to teach you,” Jiro said, bending down to grab his backpack, allowing Denki to see his butt.

“Shit,” Denki thought when he saw that Jiro was only wearing shorts that were too short and showed off her butt.

Jiro surreptitiously turned her head to see if Kaminari was watching her. “At least I know he likes me,” she thought when she saw that Kaminari wasn’t taking his eyes off her butt.

“What do you want to study first, Kaminari?” Kaminari continued staring at Jiro’s butt even though she was talking to him. “Kaminari?” He finally reacted when he heard his name for the second time.

“I-I’m having trouble with Mic-sensei’s English class,” he replied, embarrassed for not paying attention to Jiro.

Jiro took out his English notebook. "Okay, even if I'm not very good, I'll help you as best I can." She approached his desk and put down her study things. "Why are you just standing there? Come closer, otherwise how am I going to help you?" She asked Kaminari, who came over.

"W-Where do I sit?" Jiro, realizing he didn't have another seat, sighed. "I'd forgotten about that." She got up and headed to her bed. "I guess we'll have to study here for today."

Kaminari blushed at the thought of being so close to Jiro, but without hesitation, he sat down next to her.

"Okay, first we'll see how good your English is. I'm going to tell you some phrases, and you have to tell me what they mean." Jiro turned to look at Kaminari, who nodded.

*30 min later*

“I knew you were bad, but I didn't think you'd get any of these sentences right up to this point. How is it possible that out of 10 sentences you haven't gotten any right?” Jiro commented.

“Sorry, it's the subject I'm worst at,” Kaminari commented, embarrassed.

“I'll have to teach you…” “AHHH!!!” Jiro trailed off, wanting to hear better what that noise was that had been bothering her for a while.

“IZUKU, KEEP GOING, DON'T STOP!” Jiro blushed when she realized the sound she was hearing was her best friend Momo moaning the green-haired boy's name.

“Are you okay, Jiro? You're really red,” Denki asked, unable to hear what was happening in Yaoyorozu's room.

“Y-Yeah, I think it's best to save English for another day. I have to make a plan to teach you better,” she commented, an idea forming in her head.

Denki nodded, feeling embarrassed for being so bad at English. “I’m in your care, Jiro-sensei.”

Jiro blushed when she heard Kaminari calling her by that nickname. “C-Could you turn around for a moment while I get things ready for what I’m going to teach you next?”

Kaminari nodded, confused, and turned around, not wanting to anger Jiro. “Y-You better not turn around if you want us to continue studying together.” Kaminari wanted to turn around to see what Jiro was doing, but decided not to to avoid Jiro’s anger.

“Y-You can turn around now.” Kaminari turned around, speechless when he saw that Jiro was only in his underwear. “I-In Midnight-sensei’s class, we were studying the differences between men and women’s bodies, and how women can use their bodies to their advantage. So, I thought it would be best to get you used to the female body,” Jiro commented, seeing that Kaminari had entered a very similar state. When he overuses his quirk.

Jiro approached Kaminari and grabbed his hand, guiding it to his chest. “S-Say something, or all my courage to do this will disappear.” Still in shock, Kaminari could only nod as he began massaging Jiro’s chest.

“He’s not doing anything. I guess I’ll have to continue.” Jiro bent down, grabbing both ends of Kaminari’s pants. “I wonder if his penis is as big as Midoriya’s.”

Just as she was about to pull down his pants, Kaminari reacted by grabbing Jiro's hands. "Are you sure you want to continue with this?" she asked, unable to believe this was happening.

Jiro nodded and began to pull down Kaminari's pants and boxers. Jiro was impressed by the sight before her; it was the smallest penis she could have imagined. "Wow, it's tiny," she whispered, not wanting to hurt his feelings. "Did you say something, Jiro?" Kaminari asked. "I-I didn't say anything."

Jiro stared at him for a minute, unable to believe what she was seeing. "I knew it was going to be smaller than Midoriya's, but I didn't think there would be that much of a difference," Jiro thought, imagining Izuku's penis next to Kaminari's.

Jiro brought her hand closer to Kaminari's penis and grabbed it with just two fingers. "If I wanted to grab Midoriya's penis, I'd have to use both hands. With Kaminari, I don't even need a whole hand," she thought, comparing both penises. "Jiro, that feels good," Kaminari commented, bringing her out of her thoughts. "I-It's good to know you enjoy it."

Jiro started moving her fingers a little, making Kaminari's legs start to shake. "Jiro, I'm about to cum," Kaminari yelled, surprising her. "W-Wait, we just..." Jiro couldn't finish speaking as she felt something warm fill his hand.

"T-That was amazing," Kaminari commented, falling onto Jiro's bed as she watched, unable to believe how quickly it had all ended.

"S-Should we keep going," she commented, trying to get Kaminari hard again. "J-Jiro, wait." Kaminari grabbed her hand, stopping her. "I-I'm still very sensitive. I'll need to rest for a few minutes to get hard again," Kaminari commented.

"A few minutes? But in the video Midoriya was still hard no matter how many times he came” Jiro thought, again comparing Kaminari with Izuku.

“I-It's already late, I think it would be best if I went back to my room,” Kaminari commented as he saw how Jiro looked at him with a little disappointment.

Jiro sighed and then nodded. “I guess it's for the best,” she commented and started dressing, letting Kaminari do the same.

"I-I hope we can repeat this Jiro," Kaminari told him hopefully.

“Y-Yes, I look forward to the next study session,” she commented, not very convinced of what had happened that night.

Kaminari left and returned to his room, leaving Jiro alone.

“Will those two continue having sex?” She wondered and then connected one of her jacks to the wall to hear better "IZUKU THIS FEELS INCREDIBLE, I'VE NEVER FELT THIS GOOD" Jiro began to masturbate thinking about how good Momo must be feeling "I wish Kaminari had a penis like Izuku's" she thought as she continued masturbating on a night that would be too long for her listening to her best friend having sex with the green-haired man.

(Note: From here I would like to make episodes with this relationship, although I am mainly going to focus on Izuku's story. Every time there is a new chapter of this spin-off, I will write at the beginning of the chapter in which moment of the story it will take place.