To Kiwi-chan:

Thanks for the review! I guess you weren't logged in when you posted so I can't reply directly, but sure you can share it. :) It's a good reminder, I'd like to update it soon.

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Chapter 1

Mankind's greatest warrior had a secret, a price he paid for being the strongest ever to live. For someone who hated filth as much as Levi Ackerman, the concept of sex, mixing bodily fluids with another person, was like something out of a horror film. But despite this, his body still craved it like a drug in order to function. He had noticed it first when he initially joined the Survey Corps.

After his first real encounter with the titans, although he performed spectacularly by anyone's standards, he was unable to stop his hands from shaking for the rest of that day, and even into the night. Unsurprisingly, he found it was impossible to sleep with all the adrenaline rushing through his system. And again the next night, although the shaking had subsided, he still had trouble sleeping. He mentioned it to his commanding officer, Erwin, who gave him some unusual advice.

"Trouble sleeping?" he confirmed after Levi had mentioned the cause of the worse than ever dark rings under his eyes.

"Yes," growled the new recruit, in a hellish tone.

"Hm. Well, that's a problem," said Erwin, folding his arms in thought. "I can only speak from experience, but have you tried sex?"

Dark eyes rolled up with incredulity to stare at the older man. "Excuse me?"

Erwin shrugged. "I'd say it's worth a shot. There are days I can't sleep without it. And everyone's on edge, so you'll find no end of willing partners. Helps ease the tension, see."

Levi stared in disgust at his commanding officer, but discarded the idea within moments. He wasn't a virgin, but the idea of sex had always been abhorrent to him. He'd only done it before because at the time, when he was a big name in the underworld, weird rumors had started to circulate about his sexuality. He shut them down easily; he flattered himself that, like everything else, he was a natural at it. But that didn't mean he had to enjoy it.

But that night, again, he found he only got a couple of hours sleep at most, and this time felt even more tired when he did wake up. It was starting to affect his reflexes, and that was a huge problem. He had to figure something out soon.

It was then that another of his group of recruits, a brain box called Hange Zoe, confirmed Erwin's diagnosis.

"Sex, huh? Well, he's right about that."

Levi glared at her. "You're not serious."

"Oh, yes. It's been proven, I thought it was already common knowledge among the military." She tilted her chin, pondering for a moment. "Maybe I should hold a seminar."

"No, wait, you can't be saying that sex is a serious cure for insomnia," Levi insisted.

"Would you like the science?" she asked, eyes lighting up. "After orgasm, a hormone called prolactin is released. Its main job is to give feelings of relaxation and sleepiness. But that's not all! Sex is exercise, so of course that helps with sleep anyway. But unlike other types of exercise, it also lowers your blood pressure. Not that you need any help with that, robot man. It's proven to be good for your heart, which is great news for people who fight with monsters every day. Reduces chronic pain, stress, risk of prostate cancer. And those endorphins boost your mood and sense of well-being, not to mention sex is life-affirming. It's sort of the all-over cure for what we do."

Levi could only continue to glare at her as she rattled off this albeit compelling information. "All right…but then what about…solo flights?"

"Masturbation?" she asked, blinking. "Oh, it helps with most of those things too. But you know, I find it's like tickling, you can't really get yourself to feel it the same way you do with others. That, and you do miss out on a couple of benefits, like the immune system boosting, the exercise factor. I don't know about you, but when I'm by myself I don't move around a lot. Oh! I know! I'll show you."

"Say again?"

But with his sleep-deprived mind, Levi was fairly helpless to Hange's enthusiasm as she dragged him through the barracks to her room. Once the door was closed, she immediately started getting undressed, being as ever far too excitable and enthusiastic about things she cared about.

By the time she was down to her pants only, she turned and grinned at Levi. "To tell you the truth, I've been very curious what the body of the strongest person in our class looks like. How do you do so well when you're so small?"

Levi sighed, only vaguely interested in looking at her naked body, and as ever not fond of hearing criticism about his height. "The 3-D maneuvering gear needs strong legs and agility, not big bodies."

"Well, obviously you're right about that," she commented, shrugging. "By the way, I'm assuming by your personality that you're not a virgin, but you don't have much experience, right?"

He narrowed his eyes at her. "How could my personality tell you that?"

"Eh, I just fill in the blanks. I'm good at that." Next, to his shock, she suddenly put both hands under his jacket and felt up his chest. He didn't expect to, but he felt a rush of pleasant feelings at that. He felt his body relax just an inch. "Oohh," she cooed, stroking his chest over his shirt. "So hard! It's been a while since I did it with a man, and never with someone so skinny."

Levi blinked at her. "…'with a man'…?" he repeated, not objecting as she shoved him up against the door and started undressing him.

"Mm. Truth is, I generally prefer female partners, if I'm just blowing off steam. Oh, did that get to you?" she asked, placing a hand on the hardening bulge in his pants.

"Gh," he grunted, sense of pride preventing him from reacting any more than that. "Like who, for example?"

"Hm…you remember little Rico, who ended up joining the Garrison?"

"The other glasses girl? She seemed really up tight."

Hange laughed. "Coming from you I'm sure she'd take offense at that!" She considered, absently stroking him over his pants. "I mean, yeah, she took a while to come around, but…" The other recruit's eyes glazed over and she started to drool a little. "…her expressions when I moved on top of her…your imagination can't cover it. Oops, getting really turned on now. Hey, you okay with kissing?"

Levi shrugged, still blushing somewhat at the image of Hange and Rico together. "Whatever," he muttered.

"Great!"

With that, and easily, given that she was a good four inches taller than he, Hange tilted up his chin and shoved her tongue down his throat. He had a moment of disgust as another person's tongue entered his mouth, but something about her forcefulness – and her implication of lesbianism – had flipped a switch in him. He writhed under her touch as she continued feeling him up over his uniform. His pants were starting to get really uncomfortable, a fact not helped when she shoved her leg in between his.

"Ah!" he cried, in slight pain.

"Sorry, got a little excited there," she said, grinning. She quickly unbuckled his belt and at the same time got on her knees. "But you seem excited too, so let's both just get one in early, huh?"

To his amazement, while she produced his cock with one hand, her other disappeared between her legs and started to produce extremely vulgar sounds. He covered his mouth reflexively, obviously grossed out by the idea. But he could not deny the rush of pleasure running through his body, which even seemed heightened by his disgust. At that moment, a hot, wet tongue ran up his cock.

"Ngh!" he cried, falling against the door. He tried to maintain his breathing as Hange's mouth coaxed ever building pleasure out of him.

At one point, she stopped and grinned up at him, working his cock with her free hand in the meantime. By now her face was flushed, and given the lively movements of her other hand, she was obviously enjoying herself too. "You're a lot more sensitive than I expected. That's awesome."

Saying this, she fully swallowed his cock once again, causing him to bite back a moan. I have to keep in control, Levi told himself. This is shameful. How can I be feeling it so much?

With a schlop of saliva, she dragged his cock out of her mouth again. "Hey, have you ever tried deepthroat?" she asked, eyes alight.

He frowned. "What's that?"

Her face lit up with enthusiasm. "You don't know? Okay, well I think I'm a bit of a masochist, so when I do it with men I always like to feel a little subjugated." When she said this, Levi's already-hard cock suddenly felt painfully so. What did she mean? "Come over to the bed, just stand right there."

He followed her instructions, still mostly dressed, and stood by the bed as she lay down on her back, her head hanging over the edge and at the perfect level for his cock. She grinned and began stroking it again. "Good thing you're so short. Perfect level for this." She pulled his hips forward and swallowed his cock briefly, causing him to gasp. Then she removed it again and said, "Okay, so pay attention so I don't actually choke. If I push you away, that means stop. Essentially, you're going to go as deep as you can, and never mind what noises I make. Good thing I haven't eaten lunch yet."

Before he thought about the implications of her last comment, she grabbed his hips again and forced his cock down her throat. Levi grunted with the shock of pleasure as he felt his cock going down the slick walls of her throat. She gurgled, but to his amazement she buried her fingers in his ass and prevented him from pulling out. He had to bite his lip to fight the urge to cry out, and couldn't resist reaching down and stroking her breast.

"Mmm…" she moaned, and started moving his hips back and forth.

Levi quickly got the drift, and started doing it himself. She was making loud choking and gurgling sounds, but she did not push him away, so he figured he could do it harder. He took her head in both his hands, and letting go of his inhibitions, started to seriously fuck her throat.

Hange gurgled loudly, and he thought she would push him back. But to his shock, her hand traveled down to between her own legs again, and she started masturbating hard as he fucked her. This was too much. He was losing himself. The final straw was when one of her hands crept between his legs, and her finger pressed on a hard spot in between his balls and his asshole. He'd never felt a shock of pleasure like that before, and cried out as he buried his cock to the deepest point in her throat.

He felt cum squirting into her as his massive orgasm rolled over him. This was pleasure he had never imagined, nothing like his first time. He couldn't believe it as she not only did not push him back, but attempted to swallow his cock even deeper as she touched herself. Finally, her whole body tensed as fluids squirted from her sex, and she grasped his ass again as she came.

He nearly felt like he could cum again just from that. Finally he reluctantly removed his cock. Hange was totally out of it, her tongue lolling out and dripping with his semen. Though this should have driven waves of disgust over him, all it did was make his spent cock twitch.

She giggled stupidly after a moment. "You're quick, but so am I, so it's all good. Hey, want to switch roles for the next part?"

He frowned at her, though still slightly out of breath. "What does that mean?"

She giggled, then got up and yanked him toward her by his cravat. She licked some stray semen from the corner of her mouth and said, "It means I want to dominate you. What do you think of that?"

Levi flushed, and reflexively recoiled as he felt his cock coming to life again. This was ludicrous. Of all people, to submit himself to this bubble-headed science freak with the mind of a magpie? Yet as she leaned in and gave his cheek a lascivious lick, he could not help the shuddering sigh that escaped him.

"I think that means yes, right?" she asked, chuckling again.

But that moment of pause allowed some of his pride to return. Levi glared at her. The next moment, he grabbed her chin and spoke within an inch of her ear. "You want to dominate me? Then show me you're worthy of me."

Hange shivered and moaned, and did so again when he shoved her back on the bed. "You're right, this is way hotter," she said, wrapping her legs around his waist. "Fuck me, Levi. Oh god, I can't wait anymore! You're so hot!"

He thrust himself inside her and gritted his teeth to hold back his pleasure. Then he clapped a hand over her mouth and menaced her again. "Shut that mouth," he said.

Hange moaned again, her eyes fluttering as she reached back and gripped the headboard. Taking the initiative, he thrust deep in her once again, loving the feeling of her moan against his hand. He picked up the pace, unable to stop himself from panting now. When he felt he might lose to pleasure again, he leaned down to the woman gasping underneath him, still holding her mouth shut.

"Do you like my cock?" he demanded, thrusting again.

Hange screamed with pleasure under his hand, her eyes rolling back and her back arching under him. He grabbed one of the breasts that was now pressed against him and thrust even deeper.

"Scream for me, you pig," he grunted.

Indeed she did, throwing her head back as amazingly her entrance got even tighter around him. He really was losing control now, and reluctantly removed his hand from over her mouth to sit up and grab onto her waist.

"Ah! Ah! Levi! Oh, that's it! Oh my god, you're the best! You're the best I've ever had!"

"Say it again," he demanded, grabbing onto both her hips and slamming it into her harder than ever.

She could hardly speak between the pleasure and the repeated impacts, but her voice rose up with each thrust. "Oh god! You're…you're the best, Levi!"

"Better than Rico?"

"Yes…god, yes! Ah! Ah! Please…I can't take it…Levi, make me cum! I'm going crazy!"

"No," he said, stopping suddenly. As she looked up with anguish, he smirked coldly at her. "Feel me more," he said, and slowly hilted himself in her. She squeaked with pleasure, eyes rolling back as a stream of drool ran from her mouth. "Fall deeper." He thrust again, and her fingers gripped the wood so hard they started to scratch it. "Now say it again: who's the best you've ever had?"

"Y-…you, Levi-ah!"

As she said it, he began slamming hard into her again, causing her to scream in that particular voice she usually reserved for titans, and fall even further into mindless pleasure. She might have tried to say his name again after that, but seemed only partly conscious as he fucked her so hard she forgot who she was.

Finally, when the pleasure built up so much it was almost painful, her whole body tensed as her back arched extremely. She groaned, drool dripping from her mouth as her entrance squeezed down on him during her mind-blowing orgasm. Levi could no longer hold it, and gritted his teeth as he filled her with seed. They remained frozen in this moment of pleasure for what felt like a long time.

Finally, as her vagina twitched its last, Levi collapsed on top of her, panting. She was breathless as she blinked to restore her thoughts. "Holy shit, Levi," she said, starting to grin again. "I think you chose the wrong profession. That was…what, your second time ever?"

He growled. "Again…how can you know that?"

"Oh, but I see you're about to lose consciousness, so I'll just give you one last bit of advice. You fuck so good, but I think your real talents will be revealed if you do a man. I think Erwin's available. How about you…oh. Haha. Asleep already, huh? Glad that worked out for you. Give Erwin my regards!" she whispered.

She must have left after that, but Levi didn't care. For the first time in days, he fell into a restful, dreamless sleep. Now he had found the cure for nerves. If only his pride would permit him to acknowledge it. And wait, what was that last thing she said?

If you like my writing, check out my screenplay for a live-action Shingeki no Kyojin film by googling Vanguard: The Battle of Trost, or entering wwwDOTvanguardbattleoftrostDOTcom.