Vulnerable was the word of choice for Kyoka at this particular juncture. She thought asking Izuku for a favor would be easy as making a pun. She was nervous. Her hands were shaking. Her palms were sweating. The hair on her legs and her arms stood in attention; for it too was alert of the new sensation she was feeling. Her nipples became erect, excited of the new discovery that she was about to do. She knew it was wrong, this endeavor. This chase, this dance, this immoral pursuit of entrapping her classmate. This rightfully, immoral sin of committing premarital sex, something her mother ill-advised her only daughter to do.

She swallowed the lump in her throat, despite the yearning in her loins of pursuing her classmate.

He thinks the same way. He wants this as well. So, we both have favors. We are serving each other. Plus, we are experimenting. No strings attached, just exploring ourselves. Those words were the theories, the hypotheses she created in her mind. As she held the vibrator in her hand and the remote control in the other, she formed a sense of confusion as she waited for Izuku to exit the closet.

It was Kyoka's suggestion for Izuku to cosplay. She had desired it. Matter of factly, she encouraged Izuku for the favor that she requested. Izuku didn't fret, he smiled. It was a sickly sweet smile that, for a moment, looked similar to Katsuki's.

'Sure, sis. Whatever your heart desires.' He jumped from the bed, dusting himself off and trailing to the closet. I must say. Your request is less strenuous than Yaoyorozu's or Ashido's. He put his finger to his lips, dropping it slowly, treading to his chin. He did it on purpose for he knew that Kyoka's juices were purring at this point. Izuku knew how sensitive his classmate was. For there were moments he had heard the rocker moaned his name under her lustrous lips.

One day, he accidentally peeped on her through the dorm room, watching and observing as Kyoka examined her new profound sexuality. She bit her lip as she led her hands to her cavern, careful not to set into climax easily, for she knew her dick was too sensitive.

'Izuku! Deku! I love you!'

Izuku knew that Kyoka enjoyed masturbating through her panties. The sensation of the fabric, soft against rough clashed and meshed, urging her to partake in her pleasure.

'Oh, I want you to take you down to the base of my cock! It's hungry for your tender asshole, Izuku!'

She grabbed with both hands, creating a puddle as it leaked into her panties. She tended to hump, using the pillow as a post. He knew when her knees buckled and her hips dropped, that she was close to climax.

'Izuku, Izuku. I am going to cum while thinking of you. I want my dick in you so bad, Izuku. Baby, baby, do you want to toss that hot piping cum inside you? Do you want me to impregnate you, baby?'

Izuku edged his dick against the door, knowing that desire was calling his name whenever a girl wanted him. Honestly, it didn't matter if it was a girl, a boy, a transgender, a cisgender, no matter the orientation. He was desired like candy. It brought him a sensation that he had never felt before. Being desire was like a comic book he enjoyed. Neverending flipping of pages, reading to the point of completion. Yearning for more. It took no trouble for Mina, Momo, Yui, and the others to pursue him.

With Kyoka, time will play a key role. Just like his favorite manga, he had to stay tuned until the cliffhanger formed its bridge.

'I am coming, Izuku! I am coming!' Izuku closed his eyes as he knew jets of milk smeared into her panties. He watched as she collected her sperm like jelly and partook of it. His final scene was seeing the liquid linger from her mouth.

Izuku stepped out of the closet. She dropped her mouth, her body wanted to melt. She was seeing her brother in another light, another direction. Izuku was wearing a white wig. His face was covered in makeup, to the point as if it was done by a professional. He was wearing a green see-through lingerie set. The negligee covered his bra and his panties. He was barefooted. He blushed, looking like a blushing bride. He let out a slight smirk.

"Is this to your liking, dearest onee-chan?" Her brother complex swelled in her boiling hot veins. Her body was flushed, wanting Izuku by attacking him on sight. If he were a grape, she would suck the juices until it was a raisin. She swallowed once more, making small steps. They were distant from each other. She was still at the door. He was at the closet door. They were only feet away, but the walk of the trajectory to Izuku's path felt so far away.

"Izuku," she was startled. Words wanted to produce but resulted in word vomit. Her breath was labored, didn't know what to do next. Absentmindedly, she turned on the vibrator. It was its rattling that got her attention.

"Teehee," said Izuku excitedly. "I think your heart is making the decision for you. Tell me, Kyoka. Is this what you crave? Is this what you desire?" He swayed his hair, purposely covering one of his eyes. "Do you like how your sissy looks, onee-chan?" His voice turned feminine. She was startled. She was watching Izuku purposefully acting vulnerable. Was this a game to the emerald-haired child? Was he trying to play with her? Lust trumped over logic.

"I want to taste you, my dear imouto," she managed to say as she strained her voice.

Like a small child, Izuku put his fingers into his mouth. "Do I have to?"

She lifted her face, trying to play the role of a stern parent. "Yes! In fact, you are going to allow me to taste and you will deal with it! Understand?"

He pouted his lips, shaking his head in a permissible way. "Yes, onee-chan!" Izuku made graceful steps to his bed. He sat there as he waited on his sister's orders. "What would you like for me to do, big sister Kyoka?"

She crossed her arms, keeping her eyes on Izuku. "Lie down on the bed and spread your legs." She later added "Now" assertively. Izuku obeyed. He lied on his back as he spread his legs. Izuku kept a calm demeanor as he listened to his sister. The purple-haired teen watched his budding erection protrude in his soft, cotton panties. She wanted so much to taste it, but it was her role to be assertive. She wasn't going to allow Izuku the satisfaction. "Look at you, spreading your legs and allowing me to do this. Do you allow anybody to do this? Are there certain people? Or are you free for everybody like a whore?"

Izuku pouted. "Do you think I am a whore?"

"No...I mean yes...I mean no...I mean, I don't know." She furrowed her eyebrows.

"Should I be taught a lesson?"

Kyoka saw the vibrator as it was still on. She looked at Izuku. She walked forward to her little 'sister'. "Keep your legs open. Don't you dare split them apart!"

"Yes, big sister," said Izuku while moaning.

Kyoka produced spit from her mouth and landed it on her hand. She used it to apply on to the vibrator. Feeling her hot, moist spit reminded her of her juices that release from her pussy. Imagining his hot, foaming asspussy craving for her dick excited her, but angered her for Izuku had the privilege of being fucked without her getting to him.

She was still a virgin.

In her mind, how did the emerald cinnamon roll managed to get laid before her? She knew she wasn't the prettiest girl in class 1-A, let alone UA High, but at least could have been a practice girl. Knowing that classmates like Mina Ashido and Momo Yaoyorozu had their fill of Izuku. It was her turn to get hers.

She put the vibrator inside of his ass. He didn't flinch but moan. He sucked through his teeth, biting his lips as he felt the pleasure of a rod in his ass. "Yes, big sister," he moaned. "Punish me!"

The purple-haired rocker was turning beet red. He wasn't supposed to be turned on. Her mind was going in many different directions at once. She put those thoughts aside as she thrust it into his cavern.

She watched as Izuku's dick was protruding through his panties. He lied still, listening to the orders of his sister.

"Being such a damn whore," she whined to him as she thrust it deeper into his cavern. "Look at yourself, moaning like a bitch in heat."

"Do you want me to be a bitch," he hissed as he felt the vibrations. He stretched his hands in the air as he felt his dick protruding from his panties. "I can be your bitch, Onee-chan."

Heart-shaped pupils were in Kyoka's eyes. She felt her titties erecting through her shirt. She felt the pressure of her loins flaring. Then, she released a bedeviling smile. "Sure, Deku. You can be my bitch."

She removed the vibrator from his ass. She wanted something else to claim him. "Since you are familiar with having your pussy pounded. You wouldn't mind if I get a taste of it as well?"

Izuku didn't respond. Happily, he turned around and lifted his skirt. He pulled down his panties where his cavern was there to see. She dropped her skirt, exposing her panties and her hard cock. She pulled him and hoisted around her waist. With her saliva, she rubbed her engorged clitoris to prepare herself for entering him.

Her virginity was nigh.

She was grateful for losing it on this day.

"I want to take this dick as to signify your love to me. I want to get you pregnant so bad. What I like this moment is that I am going to make you mine." She giggled as she pounded her meat onto his dick. "It is like I am going to impregnate you," said Kyoka as she grabbed both of her hands on her cheeks while blushing.

"You belong to me, my whorish Deku! You are from now on my pet. I am your everything," she said to Izuku as if it was a proclamation. "I am your sunrise and your sunset. You will have my kids. We will have this crazy love affair. Let us bond in the love of incest and to finally consummate."

"Do it," he screamed while slapping his ass. "Make me your bitch, Kyoka Onee-chan! Make me your little sissy!"

Suddenly, the door opened. The light exposed the compromising position of Kyoka and Izuku. Standing in the doorway was their homeroom teacher, Shouta Aizawa. She stood motionless. She was wearing a plain white nightgown.

Kyoka forgot that Aizawa-sensei was doing night watch of dorm mother this evening.

"Kyoka Jirou," said Aizawa-sensei with a disturbed look on her face. "What in the hell are you doing with Midoriya?"

Kyoka moved from the bed. She adjusted his clothes and walked forward to her surprised teacher. He went forward and stood in front of her.

"I am sorry," she cried while panicking. "I didn't mean to. I didn't want to do it."

Aizawa-sensei looked stunned to see her students in their attire. Izuku turned over and sat down. He, too, was quiet and reserved. Kyoka was twiddling her thumbs. Sweat was dripping from her forehead.

"Go back to your dorm room now, Jirou! We will talk soon." She didn't look at her student. Her hands pointed at the door. Kyoka slowly treaded toward the door. "Quickly," she barked. "Put some pep in your step!"

Kyoka hurriedly left the dorm room, closing the door behind her, leaving Izuku alone with their teacher.

A couple of hours later….

Kyoka lied in bed worried of the transgression of what she had done with Izuku that got her into trouble with their sensei. As her roommate, Tsuyu was sleeping in the room, Kyoka couldn't help but think about what their sensei was going to do to them.

Remorse was in her brain. She blamed her hormones to get to the point of aggressively wanting Izuku.

She saw the clock being eleven in the evening. Her sensei had yet come to talk to her. She was probably stunned by the incident that she retired to bed. She wouldn't put it past her sensei

Wearing her pajamas, she stepped out of bed and headed for the hallway. It was dark, so it was safe to say that everyone went to bed. She headed straight to Izuku's room. She wanted to apologize for earlier.

She made quiet knocks on his door. He didn't answer. Still wanting to make amends, she opened the door.

She stood frozen as she saw her homeroom teacher in bed with Izuku. Aizawa-sensei kissed Izuku on his forehead. Izuku closed his eyes when feeling the warmness of her lips pressed his forehead. However, she didn't stop. She continued going. She started kissing his nose, then both side of his cheeks, and finally his lips.

"You want more of this, mother?"

"You don't know what you do to me, Izuku."

"Can you fuck my naughty hole, sensei?"

"Oh yes, Deku! Mother Sensei is going to cream that naughty snatch of yours."

"Stake your claim on this slut!"

"Yes, you are! A slut you are! And it is time to remind who you really belong to."

"Prove it, sensei!"

She suddenly turned Izuku onto his stomach. She quickly lifted his skirt and removing his panties, leaving his ass exposed.

She went on top of Izuku, keeping him pressed below her. She took his panties and jammed them into his mouth. "This should keep you quiet." She drew spit from her mouth. "I must question your womanhood. With her fingers, she delicately inserted it into his ass. Through the muffling, he screamed in delight as the familiar sensations were coming to him.

She kneeled down, spreading his ass cheeks as she spat on his anus. She massaged it with her fingers before placing her tongue in there. He moaned as she planted her wet tongue into his cavern.

Kyoka dropped to the floor. She was confused about the situation.

However, her hands glided to her cavern. She didn't say a word. She used her feet to close the door behind her and silently watched the action.

To be continued….