Warning: Graphic sexual content in this chapter , if you're not comfortable with sexual content, please just skip the sex scene part (stop reading when you see "XXX", and continue after the other "XXX").

The first thing Otoya saw when she woke up was Shiena's face. The brunette seemed to have a mix of emotion on her face. The serial killer wasn't sure if she was confused, angry or scared. Otoya straightened and sat on the bed.

"Shiena-chan, are you alright?"

"What did you do last night?" asked Shiena.

Otoya didn't answer. This confirmed what the brunette feared.

"I know it was you. You killed him"

"Yes, I killed him. So what? You said you couldn't kill him because of your group. Me, I can do what I want"

"No, you can't do what you want. I never asked you to kill him" replied Shiena.

Otoya stands up from the bed and approached of Shiena.

"I did it for you, to protect you. I killed him because I love you" said the serial killer.

She tried to touch Shiena, but the brunette pushed her.

"You're insane! How can you use the words "kill" and "love" in the same sentence? Killing can't be an act of love!" protested Shiena.

"I don't understand why you're upset. You hate him. I didn't kill him for my own pleasure, I killed him for your safety"

The brunette recoiled, afraid by Otoya.

"Someone is death because of me, how you think I feel right now? Killing can't be a way for resolving minor problem"

"Minor problem? He menaced you, this bastard deserved to die" said Otoya.

Shiena, who was disturbed by Otoya and her own feelings, tried to escape from the bedroom, and run away from the serial killer. Otoya became angry and grabbed brutally Shiena's arm.

"How can you be so ungrateful? Dammit, I love you, I only did this for you. Why can't you understand this?"

The serial killer tightened Shiena's arm with too much strength.

"You hurt me, Otoya"

The serial killer began to laugh.

"You think it's hurt? You're the one who hurt me, you hurt my feelings!" screamed Otoya.

She violently pushed Shiena on the wall.

"If it's what you want, I will hurt you for real!" said the serial killer.

With a fit of rage, Otoya bit Shiena's neck, making her bleed. The brunette uttered a scream of pain, before falling on the floor, in shock. It's took a moment for Otoya to realist what she had done.

"Sorry, Shiena-chan, I'm truly sorry. I…you bleed a lot, I going to look for something, just wait here…"

Otoya began to walk, while Shiena stands up. Because of her feeling of panic, the brunette didn't think about her acts right now. She took a chair, approached of the serial killer, and smashed it on her head. Otoya staggered a little, before falling on the floor, inert.

Shiena was sat in the corner of her room, still in shock. After she had knocked out Otoya, the brunette tied up and locked up her in the closet. The serial killer was awake, and she was pretty mad right now. Shiena didn't know what to do. She couldn't let Otoya forever in her closet, but if she freed her, she could attack her.

"Shiena-chan? Are you still there? Dammit, let me get out of here!"

The brunette approached of the closet's door and sat in front of it.

"I'm here, Otoya"

"Great, now untie me…"

"I can't, I don't know what you going to do"

"I'm sorry, for the bite. Your neck is alright?" asked Otoya.

Shiena touched her wound on her neck, which was still sensitive.

"It stopped bleeding. It's not a serious injury" answered Shiena.

"Are you mad after me for what I did?"

"The bite or the murder?" asked Shiena.

"Both"

The brunette took a moment for thinking before answering.

"No, I'm not mad. I'm just…confused"

"I swear, I killed him for protecting you…"

"I know! I also know that for you, it's a proof of love, but not for me. But I don't know what to think about you, I don't know my feelings for you, I'm confused right now!"

Shiena took her head in her hands and began to cry.

"Shiena-chan, are you crying? Please, don't cry, I don't like it…"

The brunette touched the door, her tears rolled down her cheeks.

"Promises me you will not kill if there is another way to help me" said Shiena.

"I swear, I won't do it again"

Shiena grabbed the handle and opened the closet's door. Otoya was lying on the floor, tied up.

"If I untie you, are you going to attack me?" asked Shiena.

"No"

Shiena didn't know if Otoya said the truth, but she couldn't let her in her closet. She helped to stands up and began to untie her, a little bit scared. When she was untied, Otoya grabbed Shiena's shoulders and kissed her. She headed to the bed and pushed the brunette on it.

"Otoya?"

"Sorry Shiena-chan, but I can't control myself. I want you, I want to touch your body, and want to feel it! And judging by what you did yesterday, you want it you too"

Shiena's heart pounded harder. It was true, she wanted to be more intimate with Otoya, she was attracted by her, in a sexual way.

"I don't want to hurt you, so please, don't try to stop me and remove your clothes" said the serial killer.

The brunette began to blush. She didn't want to be sexually assaulted like the first time Otoya and her had an intimate moment together. Shiena decided to obey at Otoya and began to remove her clothes, beginning with her shirt. Then, she removed her skirt, and finished with her bra. The brunette only had her panties on her, lying on the bed. Otoya lay on her, beginning to touch her gently. XXX

"Wait!" said Shiena.

"Huh, what's wrong?"

"It's embarrassing, please remove your clothes too"

The serial killer began to smirk.

"You want to see me naked, Shiena-chan?" teased Otoya.

"I-it's not what you think! It's just embarrassing for me to be the only one naked" explained Shiena, blushing.

The serial killer removed all her clothes, making Shiena blushed even more.

"They are bigger than mine" she thought.

Otoya gave a brief kiss on Shiena's lips.

"Don't worry, Shiena-chan, I won't hurt you. I'm going to make you moan of pleasure, not of pain"

Otoya began to lick the brunette's ear, before kissing her in the neck. With her left hand, she grabbed one of Shiena's breasts and fondled it gently, playing with her nipple. Shiena suddenly moaned when Otoya, with her right hand, slipped into her panties, touching her wet entrance. The serial killer grabbed Shiena's other breast and began to lick her nipple and biting it gently. She sucked on it a little bit harder, while she was playing with Shiena's clit with her fingers. The brunette was still moaning of pleasure, while Otoya entered two fingers into her. Shiena became increasingly wet, and Otoya began to play more rapidly with her clit. Shiena's mind became blank for a moment, and she uttered a scream of pleasure. She had come by Otoya's fingers.

Otoya looked at Shiena's face. Even if she liked her expression of pain, the serial killer preferred the brunette's expression of pleasure. Her moans of pleasure were even more sexy and exciting than her screams of pain for Otoya. She began to stroke her fluffy hair gently, while Shiena was gasping.

"You're cute, Shiena-chan"

The brunette opened her eyes, still exhausted.

"It was…good" said Shiena.

"Do you want to continue?" asked Otoya.

"Yes, please"

The serial killer smirked. She kissed one more time Shiena, before looking at her body. All this scars, it was her fault. She did this to the brunette. Otoya regretted a little to have damaged permanently Shiena's body, but she also feel like she had marked her, that her body belong to her now. Otoya began to kiss every scars, beginning with the one on her cheek, after these on her neck, arms and belly, and finished with the one on her thigh.

She removed Shiena's wet panties. Otoya began to gently licking it, playing with Shiena's clit with her tong. The brunette moaned loudly, shaking her hips intensely. Otoya grabbed her thights, to immobilize her. The serial killer slipped her tong into Shiena's wet entrance. She moved her tong inside of the brunette, making her moaning even more. Shiena grabbed the bed's tissues, biting her lips because of the intense sensation of pleasure.

"O-Otoya, I'm g-going to…c-come!"

Otoya grabbed Shiena's clit with her mouth, licking it with her tong, before sucked on it. Shiena felt heat in all her body, before uttered a shriek when she had an orgasm. Her eyes became wet and her mind was dizzy. The brunette was breathing heavily. Otoya leaned on her, stealing a brief kiss. She wiped Shiena's tear.

"Did I hurt you?" asked Otoya.

"No, you made me feel…really good" said Shiena, before hugging Otoya. "I want to feel good with you, Otoya"

"It's impossible, I can't have sexual pleasure without killing"

"Well, that's a troublesome sexual disorder, but I'm not sure that you really can't…"

The brunette touched lightly Otoya's crotch. The serial killer uttered a weak moan.

"You're too much wet for someone who wasn't supposed to have sexual pleasure" said Shiena.

"You're special for me Shiena-chan, maybe with you I can"

Otoya raised one of Shiena's legs, and joined their two vaginas, in the scissoring position. Both of them were wet. The serial killer moved her hips, rubbed their clit together. Shiena's began to moan, while Otoya began to feel something. She moved her hips harder, beginning to groan a little. She lay on Shiena, and their breasts touched together, making them more aroused. Shiena was almost at her limit, while Otoya just began to feel good. She pushed with more strength her clit against Shiena's clit. The serial killer groaned a little more.

"O-Otoya, you're too much…intense. I can't take…it"

Otoya was barely listened the brunette. She kissed her for making her silenced. Otoya uttered few stifled groans. The serial killer broke the kiss, while Shiena was moaning intensely. After few seconds, they both reached climax. Otoya fell on the bed, drained. She was confused right now. She had sexual pleasure, even if she didn't kill Shiena. It was the first time. Even when she tried with herself, Otoya never had sexual pleasure without killing.

XXX Shiena was terribly exhausted, she was breathing heavily and was half-conscious. The brunette snuggled against Otoya.

"Otoya…" she whispered, dizzy.

The serial killer hugged her and stroked her hair, while Shiena fell asleep in Otoya's arm.

"I love you, Shiena-chan" she said, before kissing her forehead.

I take a little break of this fanfiction, it's not complete but I don't have idea for the moment, and I want to write other fanfictions. Thanks for your supports :)