(This is my first attempt at smut, so go easy on me. :D)

''I'd appreciate it if you didn't do that…'' Yuu mutters looking at the female vampire known as Crowley Eusford in front of him.

''Oh come on don't be a spoil sport.'' Crowley whines at him as she fills her blade with blood with a grin that was beginning to grow on her face.

''Seems a bit unfair if you're just gonna flash a dude and then use the distraction to kill him…'' Yuu says flatly making Crowley giggle at him as she buttoned up the rest of her outfit.

''Come on now Yuu don't be such a stud!'' Crowley sings out making Yuu sigh.

''Please don't talk to me like we're friends.'' Yuu says with a frown on his face as demonic tattoo's appear on his skin making Crowley's grin get larger.

''But I thought we we're allies! Remember that time when we saved Ferid and Krul together?'' Crowley says making Yuu frown at her. ''Yes I do, and I regret every moment of it.'' Yuu replies making Crowley sigh melodramatically as she bends down and her arms flop downwards as if she'd just run out of stream.

''What are you….doing…oh.'' Yuu says his voice suddenly stopping as Crowley throws herself onto Yuu's back as she vanishes from his sight and hooks herself around him and staying limp against him like a sloth.

''Get off me!'' Yuu shouts moving his arm back to grab Crowley only for her to move slightly and avoid his hand making her giggle at him much to his annoyance.

''But your back is so warm…'' Crowley sighs blissfully as Yuu dances around trying to grab the female vampire from his back.

''And you're heavy!'' Yuu shouts as he grabs Crowley's arm causing her to frown. ''You don't call a woman heavy.'' Crowley says grab Yuu's ear and pulling it making him hiss in pain Crowley forces his head to the side making him let go of her arm.

''Could you not!?'' Yuu shouts only to be ignored by Crowley who stare at Yuu's tattoos. ''You know Ferid never really did tell me how your weapon worked.'' Crowley mutters running a finger across one of the tattoos making Yuu shiver at the feeling of her ice cold hands running across his skin.

''Well that's too bad, why not asks him? You're a seventh progenitor as well aren't you?'' Yuu says angrily making Crowley giggle once more.

''You're all grown up now Yuu!, you're what? Twenty-three and still a virgin?'' Crowley says with a laugh as Yuu's face lights up in embarrassment and anger.

''Aww isn't that just adorable, the 'wittle hueman' is all flustered.'' Crowley says in a cutesy voice as she wraps her arms and legs around Yuu and starts to apply pressure.

''Y-you're crushing me woman!'' Yuu gasps out causing Crowley to stop crushing Yuu and allowing him to breath properly.

''You're a lot more fragile than you used to be, remember that time at Ferid's estate?'' Crowley asks as Yuu sighs giving up knowing she'd just keep herself clamped to him. ''How could I forget? That cheap shot to the nuts wasn't painless you know.'' Yuu says flatly as he sits down causing Crowley to chuckle at him.

''Well you did start it back in Shinjuku when you threw me through a building.'' Crowley says making Yuu crumble about how he didn't have a choice in the matter.

''Come on now don't be that way, we've had good memories!'' Crowley sings out as she rubs the side of her face against Yuu's much to his embarrassment causing him to look away.

''Like what exactly?'' Yuu asks flatly prompting Crowley to pause for a few moments and think.

''The time we first met that was fun!'' Crowley says suddenly making Yuu jump causing Crowley to laugh at him once more. ''For you, you scared the shit out of me when you tapped me in the back.'' Yuu says making Crowley giggle remembering the moment perfectly and the rather girlish scream Yuu did when she tapped him.

''Still embarrassed that you screamed like a little girl?'' Crowley teases making Yuu blush in embarrassment.

''I could have sworn I heard you scream rather girlishly when Ferid threw you to the side to get to me when you freed him from the cross.'' Yuu says making Crowley frown slightly remembering how he'd thrown her into a vampire to save his skin and get to Yuu to try and drink his blood.

''Look at that you've gone and ruined the mood.'' Crowley says placing her head atop of Yuu's. ''There was no mood to start with.'' Yuu says flatly only to be ignored as Crowley sighs looking up at the sky.

''So…ar-'' Yuu attempts to speak only for Crowley to place her hand over Yuu's mouth shutting him up. ''No, it's rather peaceful right now.'' Crowley says quietly instantly knowing he was going to say if she'd let him go.

''Hm-hmmhmm.'' Yuu attempts to speak only for it to come out as a mumble through Crowley's ice cold hands.

''What was that?'' Crowley asks taking her hand away from Yuu's mouth. ''What are you even doing out here? Last I checked you we're meant to be in Europe with Ferid looking for some dude named Saito.'' Yuu explains prompting Crowley to chuckle lightly.

''Come on didn't you miss little old me?'' Crowley asks happily ignoring the question causing Yuu to simply huff making Crowley sigh once more.

''Sorry but I'm not into woman older than me.'' Yuu says making Crowley giggle much to Yuu's confusion.

''So you're into necrophilia but not older woman?'' Crowley asks making Yuu realize his mistake forgetting about the fact that vampires we're technically 'dead'.

''That's not what I meant and you know it.'' Yuu says with a hint of red on his cheeks. ''Surrreee…'' Crowley draws out with a chuckle enjoying teasing Yuu.

''You know I'd prefer not to stay in Horseman territory, I'd prefer not to get torn to bits and eaten anytime soon.'' Yuu says noticing the silence was beginning to get awkward rather than peaceful making Crowley says and grab the sides of Yuu's head and turn his head up so he was looking up at her.

''You really are anti-social huh?'' Crowley asks looking down at Yuu who just huffs at her. ''Well being trapped in a city underground didn't really help too much.'' Yuu says flatly as he glances away from Crowley.

''Hey Yuu.'' Crowley says getting Yuu's attention prompting him to look up at Crowley. ''Ye-humm?!'' Yuu attempts to speak only got Crowley's cold lips to envelope his causing his eyes to widen at the sudden move and red to cover his face, they remained like this for several more seconds before Yuu moves his arms upwards.

Suddenly Crowley's eyes widen as she feels Yuu's hands grab her shoulders and throw her in front of him and onto his lap. ''Huh? Don't you li-'' Crowley attempts to speak only for her lips to be captured by Yuu's making her eyes widen for a moment before closing as she accepts the act of passion from Yuu.

''aren't you a naughty once.'' Crowley purrs as she moves away from Yuu's lips much to his displeasure. ''You started it.'' Yuu says throwing her excuse back at her making her chuckle. ''I see what you did there.'' Crowley whispers into Yuu's ear before wrapping her legs around Yuu's waist and arms around his neck. ''Hmhmm.'' Yuu hums with a smirk on his face.

''Still looking for more? I thought you weren't into older woman.'' Crowley teases making Yuu chuckle. ''Well…I can make an accepta-'' Yuu attempts to finish his sentence only for Crowley to once more capture Yuu's lips in a kiss silencing him.

Rather than remaining on the cold Group Yuu lifts both of them up from the ground before turning and placing Crowley against the wall causing her to gasp as her back comes into contact with the damp wall but decided to ignore it and concentrate on Yuu.

After several more seconds of kissing Yuu breaks away to breath much to Crowley's displeasure this time. ''Breathings such a trivial thing.'' Crowley chuckles out as Yuu catches his breath quickly. ''Might not be for you, vampires don't need to breath last I checked.'' Yuu says making Crowley chuckle at him.

''Where did you hear such a stupid thing?'' Crowley asks making Yuu's eyes widen. ''Wait…so vampires do breathe?'' Yuu asks prompting Crowley to nod. ''The more you know I guess.'' Yuu mutters causing Crowley to giggle at his ignorance about vampires much to Yuu's embarrassment.

''Well Yuu, I think you've had your fun but I think it's my turn to steer the ship.'' Crowley says unwrapping her legs from around Yuu's waist and standing up to her full height standing half a head taller than Yuu severally reminding him of his small size.

''Wait, what do you mean steer the sh-'' Yuu wasn't able to finish as Crowley suddenly clamps her hand over Yuu's mouth silencing him causing him to gulp noticing the rather feral look on Crowley's face. ''Shh…property doesn't talk…'' Crowley whispers into Yuu's ear making him shiver as she unbuttons the front of Yuu's uniform and pulling his coat down enough to expose his shoulder to the cool air of Japan.

Without warning Crowley moves down and bites Yuu's shoulder causing him to gasp into Crowley's palm and turn his head to the side causing her to chuckle at his reaction.

Continuing to suck Yuu's blood, Crowley's now free hand slithers down Yuu's chest and towards his trousers. ''Your blood really is to die for…'' Crowley sighs blissfully as she finishes drinking Yuu's blood before looking back down at Yuu's face making him raise a brow at the rather…hungry look on her face.

''Oh how I've fallen, getting hot and bothered over a human.'' Crowley says giddily to herself as she pushes him into the wall with her free hand her breath becoming heavier causing Yuu to gulp. ''U-umm…Crowley I think you're losing control…'' Yuu says nervously making Crowley grin as small demonic markings form around her eyes. ''Shh…'' Crowley shushes as her hand moves into Yuu's trousers making him gasp as she grabs his rod before capturing Yuu's lips once more with a moan as she forces her tongue into his mouth.

If It was anyone else Yuu would have instantly went for his sword but it wasn't just anyone, it was Crowley so instead of trying to kill the vampire currently dominating him Yuu simply let it happen knowing it was all he could do against the 7th Progenitor who was showing demonic traits.

''You're taking this really well.'' Crowley whispers seductively as she breaks away from there passionate kiss allowing Yuu to breath once more. ''In all…honesty I'd prefer to be the one on top.'' Yuu says catching his breath once more trying not to groan in pleasure of the feeling of Crowley's hands on his rod.

''That's a shame…'' Crowley giggles as she begins to stroke Yuu's shaft making him groan at the feeling of pleasure.

''D-don't you think this is a bit public?'' Yuu grunts out prompting Crowley to pause and look around to see they we're indeed outside in the cold in an alleyway. ''You're right…'' Crowley mutters removing her hand from Yuu's pants, much to his displeasure, before picking him up bridal style and jumping up to one of the rooms within the building beside them and dropping him making him shout out in surprise.

''There!'' Crowley says with a grin on her face as she gets on her knees and begins to crawl towards Yuu prompting him to back up at the feeling of the predatory aura she was giving off. ''This is a real leap from earlier.'' Yuu says nervously remembering how it started as a simple kiss to now where Crowley had suddenly turned into a rather sex craved animal after drinking his blood.

''Where do you think you're going? You're running out of room.'' Crowley purrs as Yuu's back finally hits the wall making him gulp. ''W-well…this is certain unexpected…'' Yuu chuckles out nervously as Crowley crawls over him with a predatory grin on her face.

Instead of answering him Crowley dives down capturing his lips within hers in a passionate kiss as she begins to unbutton the coat of his uniform once more. Crowley had made quick work of the top half of Yuu's uniform leaving him bear chested allowing Crowley to drink in the sight of Yuu's well-toned body with several battle scars that stuck out like a sore thumb prompting her to trace them with her cold fingers making Yuu shiver once more at the feeling.

With a devilish grin suddenly coming to her face Crowley moves away from Yuu propping herself up cowgirl style and began to unbutton the front of her uniform making Yuu gulp once more in anticipation. ''You're such a greedy human Yuu…'' Crowley breaths out as she finally throws her coat and the tank top under it leaving a bra covering her breasts.

''Are you planning to tease me the entire time?'' Yuu asks making Crowley giggle at him once more as the markings around her eyes spread down her face. ''Maybe…'' Crowley breaths out again as she runs a hand down his chest using her nails to bite into the skin making him cringe at the feeling of his skin being cut.

''Y-you know…you're turning into a demon right?'' Yuu stutters out prompting Crowley to smile at him widely as she bends down once more so they were face to face. ''I know…'' Crowley whispers into Yuu's ear before she begins to nibble on his neck making him grown at the feeling not noticing one of Crowley's hand move down his torso and towards his trousers once more.

''Yuu…?'' Crowley asks tilting her head noticing that demonic markings were beginning to form around his face before completely disappearing leaving Crowley looking down at him. ''Hellooo?'' Crowley draws out using her hand to open Yuu's eye to see red making her eyes widen as horns spout from his skull and a hand springs up grabbing her by the neck and pushes quickly turning the tables with her on the floor and Yuu towering over her.

''Oh dear…'' Crowley says weakly looking at the large grin on Crowley's face. ''What's wrong Crowley?'' Yuu asks playfully as his free hand moves down her side making her shudder at his touch. ''The tables really have turned hmm?'' Yuu asks licking his lips showing his fangs making Crowley gulp nervously the demonic markings around her eyes fading. ''Y-yes…it really does seem that way…'' Crowley stutters out prompting Yuu to chuckle and lean down before nibbling at her neck causing her to moan.

Rather than making a comment on how vulnerable Crowley was Yuu instead moved his free hand down to Crowley's trousers, crushing the belt with his hands and plunging his hand into her pants and to her woman hood making her gasp at the feeling of Yuu's fingers rubbing against her clit. ''Yuu…'' Crowley moans out as Yuu removes a hand from her neck and places it on her lips. ''Property doesn't speak remember?'' Yuu whispers into Crowley's ear making her pale shudder once more at the hot air from his mouth touching her cold skin.

''Shh…'' Yuu whispers once more before moving back and picking Crowley up and moving them to the bed and against the backboard prompting her to wrap her arms and legs around Yuu like in the alleyway beforehand. ''You're a really naughty vampire Crowley.'' Yuu says devilishly as he uses one hand to carries her side and the other to pull her trousers down just enough to allow Yuu access to Crowley's womanhood.

''A vampire being dominated by a human…who'd have guessed…'' Crowley says prompting a small laugh from Yuu. ''By the looks of it you seem to be enjoying yourself.'' Yuu mumbles into Crowley's neck as he continues to bite at it, allowing his fangs to break to skin making her hiss in a mix of pain and pleasure.

Continuing Yuu uses his hands to pull down the bottom half of his uniform pulling them down and moving onto Crowley and pulling her underwear off exposing her woman hood to Yuu who quickly grins once more and places a finger into her womanhood making Crowley move her head into Yuu's shoulder and muffle the moan that escaped her lips.

''S-stop teasing me…'' Crowley manages out as Yuu continues to use his fingers to play with Crowley's womanhood. ''Why should I?'' Yuu asks moving his mouth away from Crowley's neck and facing Crowley whose face was red from the pleasure. ''After all you did the same with me.'' Yuu adds on seeing Crowley wasn't answering anytime soon. ''P-please…'' Crowley begs prompting Yuu to chuckle and close the gap between their faces and kiss Crowley causing her to instantly melt into it as they semi-possessed Yuu expertly used his tongue to find every weakness available to him against her.

Finally done with his fun Yuu removes his fingers from Crowley's womanhood causing her to whimper at the sudden emptiness inside of her only to gasp into Yuu's mouth as Yuu pushes himself inside her wet folds causing him to Grunt and Crowley to moan deeply into his mouth. ''Well, well, well…would you look at that…the eight-hundred-year old vampire IS a virgin…'' Yuu says with a grin on his face as he feels Crowley's hymen making her face redden ten shades deeper.

''I-I didn't have time for sex when I was human, I had to dress and act like a man to become a knight…'' Crowley explains in embarrassment making Yuu chuckle at her. ''Well…that doesn't really matter now does it?'' Yuu whispers into Crowley's ear before pushing himself forwards slowly with a groan breaking the Hymen in the process causing her to hiss in pain prompting Yuu to stop for a moment allowing the pain to fade before pushing himself fully in making Crowley moan his name once more into his lips.

Yuu groans once more as he moves back out then in and begins to repeat the motion at a medium pace causing Crowley to repeatedly moan and gasp as they shared their compassionate kiss. Yuu continues this pattern for several minutes the only sound breaking the silence being Crowley and Yuu's grunts and moans filling the old room that was in surprisingly good condition.

''Y-yuu'' Crowley moans out louder and louder prompting Yuu to understand Crowley was coming close to her Climax and making him pick up pace causing Crowley's moans to become louder and louder before she couldn't bare it anymore as she reached her peek and with a loud moan into Yuu's shoulder Crowley finally reaches her Climax along with Yuu. ''Y-you really are a devil Yuu…'' Crowley pants out tiredly making Yuu chuckle as they fall back onto the bed tiredly.

''Hmm…'' Yuu hums as the horns from his head begin to sink back into his skull and the red leave his eyes showing the deep emerald green once more. ''This certainly escalated quickly.'' Yuu Says as he rubs Crowley's back prompting her to hum out her agreement as she lays her head on his chest.

''L-LADY EUSFORD?!'' A Shocked voice shouts making Yuu and Crowley jump up in surprise to see Chess and Horn looking at them in a mix of shock and disbelief. ''Friends of yours?'' Yuu asks making Crowley slap the back of his head softly causing him to chuckle. ''H-horn…Chess what are you doing here?'' Crowley asks while internally slapping herself for stuttering.

''We were sent to look for you bath lord Bathory, BUT WHAT ARE YOU DOING?!'' Chess shouts at Crowley with a large blush across her face making both Crowley and Yuu chuckle nervously. ''We're in deep shit now…'' Crowley mutters prompting Yuu to nod. ''Ten tons of it.'' Yuu finishes looking at the vampires currently occupying the room.