AN: Hi Kiko here, with a monster AU story from myself and The Citrus Principle, this chapter features a Vampire Blake and Were-Bear Yang... Warning, slight size difference and blood... with smut of course.

Yang clutches the blanket tighter around her body, she hated this time of year, when her body decides it wants her to breed something… anything… She is shaking "Please... no one come back... soon..." she whispers, a growl underlining her voice.

Blake walks into the dorm, her nose filled with the smell of Yangs rut and she immediately freezes, "Yang...?"

"Do-don't come near me!" Yangs cock aches at the sound of Blakes voice.

Blake smiles deviously though, "Oh? Is it that time of year...?"

Yang clenches her jaw, her nails tearing into the blanket "shut... shut it..."The were-bear growls through clenched teeth.

"So rude... Well if you were more polite I might be able to help..."

"Help..." Yangs head pops up, "You'll... help... "

"Yes Yang..." Blake whispers directly into her ear, "But I'll need something in exchange first..."

"Any... anything!"

"Good..." Blake whispers, "Then sit up and take off your shirt..."

Yang sits up, her hands grabbing the hem of her shirt and pulling it over her head

Blake climbs onto the bed behind her, stiffing the side of Yang's neck, "You see Yang... I've been rather thirsty..."

"Then drink! Take as much as you need!" Yang whimpers at the close contact.

Blake smirks, licking from Yang's shoulder to her cheek, "Then do hold still..."

Yang freezes, her body shaking.

Blake slowly, teasingly parts her lips just wide enough to prick Yang's skin with her fangs.

Yang tilts her head to the side to give Blake more room, her thighs trembling as she grasps at her legs, claws digging into her skin.

Blake takes a deep breath, inhaling the scent of Yang's frustration, before biting down...

Yang gasps in pleasure, her hips jerking and her claws draw blood from her thighs.

Blake reaches around Yang with both hands, one to grope at the blonde werebear's breast, the other to reach down for the waistband of her shorts.

Yang moans, her hips bucking even before Blakes hand reaches down her cock.

Blake moans into Yang's shoulder as she drains the blood from her partner, savoring the flavor and slipping her hand into Yang's pants.

The were-bear whimpers, her arms straining to stay still "please... I want... to feel... you around my... cock..."

Blake removes her teeth, licking the blood from her lips and from Yangs neck, "Patience Yang, I'm not finished..."

Yang moans, the wound closing quickly, blood still dripping down her neck and shoulder.

"Lay down" Blake orders as she licks up the last of the blood off Yangs neck.

Yang lies down on her back, her cock tenting the front of her shorts.

Blake straddles her, grinding against the bulge in Yang's shorts as she bends down to bite into Yang's right breast.

Yangs hips buck, her hands on Blakes' waist as she grinds up, "fuck..."

"Easy cub... you'll get your chance..." Blake assures, biting into her other breast, 'But when I'm done..."

"I'll... be begging for you..." Yang moans her hips bucking again.

Yang's blood is hot - spicy even - and Blake savors every drop, lapping it up with her tongue as she removes her fangs, making sure to tease the blonde were's nipple with her tongue, "Then Beg..."

"Blake... please... please let me mate with you... let me fill you ..." Yang whines, her hips twitching.

Blake smirks down at Yang, reaching down to pull her own shirt off, "Well since you asked so nicely..."

Yang digs her claws into Blakes hips, trying to stay still.

Blake grinds against Yang more, without removing her leggings, and she reaches down to unzip Yang's shorts, "How much do you want me...?"

"More than life" Yang whimpers, her jaw clenching

Blake pulls Yang's cock out and strokes it, "I see..."

"If... I was human, would... would you turn me if I asked you?" Yangs cock twitches in Blakes' hand.

Blake leans down to whisper in Yang's ear, squeezing her shaft, "Why would I bother? Then you wouldn't be any good to me~"

Yang whines, her hips jerking and her claws dig harder into Blakes' skin "Why..."

"Because then I couldn't do this~" Blake bites Yang's breast again, taking special care to put one of her fangs through Yangs nipple and then lapping up the blood, "You're simply far too delicious..."

Yang throws her head back and moans loudly, her hips jerking and a growl leaves her throat

"Oh don't tell me that's too much for you..." Blake takes Yang's clawed hand and pulls it between her legs, "You're so horny that your blood's making me hot..."

Yang digs her claws into Blakes' thigh, "I'm in heat... what did... you expect..."

Blake uses the claw on Yang's middle finger to slit her own leggings and panties open, trembling with pleasure as the claw stroked her folds, "I expect you to be a good time..."

"I will be..." Yang pushes a finger inside Blake with a grin.

Blake gasps, "Oh come now... You can do better..."

Yang adds two more fingers curling them, her hips bucking up.

Blake's body jerks, then trembles, "Harder..."

Yang growls; her claws drag along the inside of Blakes' walls, being careful not to cut her sensitive flesh.

Blake places both palms on Yang's stomach and begins bucking her hip, "What's the matter Yang? Are you afraid to seal the deal?"

"I can still kill you..." Yang pulls her fingers out of Blake and presses her cock to the vampires' entrance.

Blake vanishes in a puff of mist, only to re-materialize sitting on the desk against the wall, legs crossed, "Now, Now Yang. You were doing so well, but if you can't behave yourself, well... I'm afraid we can't continue..."

A whine leaves Yang, "I'm... I'm sorry..."

Blake smiles confidently, spreading her legs again, "Good Girl... now come get it..."

Yang walks over to Blake, her cock pulsing with blood as she grasps Blake by the hips, lifting her up, "Is... there anything I can't do to you?"

"No Sunlight," Blake rolls her eyes, "Nothing else could possibly do could hurt me,"

"Well its evening, but I won't hurt you with that" Yang growls as she slowly pulls Blake down onto her thick cock, her nails digging into Blakes skin, "I... think it's a full moon tonight as well..."

Blake's brow furrows, "Well this should be interesting..."

Yang thrusts inside Blake roughly. Slamming her cock through Blakes' cervix in one quick motion, with no care for how Blake feels.

Blake winces at first, but then adjusts, relaxing the muscle to allow for Yang's shaft, "You're almost the biggest I've ever had..."

"I get bigger... much bigger when I transform..." Yang growls and thrusts again, her claws pricking Blakes skin.

"Mmmmmm... that's good..." She throws her head back, bracing her palms against the tabletop, "Then show me what you're made of..."

Yang closes her eyes, tapping into her inhuman strength with each thrust, getting harder and faster, pounding into the vampire.

Blake's legs jerk and her breasts jiggle in time with the pounding, and she moaned in pleasure, "OO-Oh YES!"

The moonlight shines through the curtains, flashing over Yang, her pupils become slits and she shudders, "fuck" her cock twitches inside Blake.

"That's right... let loose..." Blake moans, her insides slowly tightening around Yang.

Slowly, very slowly, Yang gets bigger, fur sprouting over her body and her cock getting thicker and longer inside. "Fuck..."

"Mng..." Blake winced, "O-Oh yes..."

Something inside Yang snaps and she leans forwards, biting into Blakes' neck as she thrusts harder, and she is sure that if Blake wasn't a vampire, the were-bear would have, most likely, broken her hips under the force of her thrusts.

Blake's eyes bulge as she is stretched to the broadest possible natural limit, "F-fuck..."

An Ursa mask appears over Yangs face, her claws dragging down Blakes thighs as she hilts herself inside the Vampire, "I'm... going to destroy you..."

"G-Go... Ahead... And TRY!" Blake moans, feeling herself tear slightly before healing and allowing for the additional thickness...

Yang slams into Blake, hitting the farthest wall of her womb, making her stomach bulge slightly as her cock gets another inch wider, her bones cracking as she starts changing forms.

Blake's pussy stretches to accommodate, her back arching with pleasure, and a little trickle of blood runs down her thighs, "H-How much b-bigger!?"

"I haven't even finished transforming yet" Yang growls, her hips jerking as she rocks against Blake hitting a bunch sensitive spots as she pulls almost all the way out, thrusting back inside with just as much force.

"OH FUCK!" Blake screams as she cums.

Yang growls, holding herself inside the vampire as the walls around her cock tense, trying to milk her and she just barely holds off from cumming as she closes her eyes and counts in her head, her body shaking with the effort.

Oh... N-No... You... D-Don't!" Blake groans with pleasure, forcing herself to buck her hips to milk Yang harder.

Yang holds Blake still with her strength, her grin visible from under the mask as she starts thrusting again, her fangs scraping against the base of Blakes neck.

Blake keeps bucking her hips, deliberately clenching herself around Yang.

Yang gives one more thrust before cumming, filling Blake. The moon shines over Yangs back, her hair turning black, her body shuddering as she fully transforms into an Ursa, a roar leaves her throat and she cums again, making Blakes womb swell.

"Oh YES!" Blake cries, "S-So Much!"

Yang holds herself inside Blake, filling her repeatedly, cum leaking out from Blake as Yang growls.

"G-Go ahead..." Blake moans, "But remember you can only feel like this if I let you!"

Yang huffs as she pulls out, letting the torrent of cum flood from Blake as she goes mostly human, her mask still on her face.

Blake gasps as her stomach reaches normal size once more, though her folds remain wretchedly loose and stretched "H-Hell..."

Yangs picks Blake up, her arms around the Vampires waist, "Thank... you" she walks over to her partners bed and lies down.

"G-Glad to be of... Of service..."

Yang hugs Blake to her chest, holding the Vampire against her chest, "If... if you want... you can take more of my blood...?"

Blake winces, thinking of her stretched entrance, "Y-yes... t-that would be best..."

Yang tilts her head, exposing her neck to the vampire "Drink, blood freely given tastes the best right?"

"T-that depends..." Blake sighed, nuzzling up to Yang's neck, "But In this case I'm inclined to agree..."

Yang nods, "Then drink... please..."

Blake nods, taking a bite and drinking deep.

Yang closes her eyes and groans, "When... you drink... it helps take the edge of my heat off... thank you..."