"Fucking hell goddamn sorcerer I should have ripped his blasted head off!" They came bursting through the door, Erica and Isaac racing ahead Erica shaking with laughter while Isaac looked suitably horrified.

Stiles came racing down he had heard the door slam and the yelling, when he saw the three of them he froze what the hell.

"Erica where's Derek and who the hell is this?" he indicated towards the brunette woman standing in the hall.

"Oh Stiles that is Derek," Erica was struggling to speak as she leaned against the wall tears running down her face.

Suddenly the woman who was wearing Derek's leather jacket and jeans morphed into a werewolf red eyes glowing as she snarled at Erica who just leapt away and ran outside.

"Isaac what is going on why is Derek a woman?" Stiles voice was shrill and sounded a bit hysterical.

"The ah sorcerer got him said something about this keeping him busy and just flung this bottle of goopy pink stuff at him and poof he's a girl." Isaac replied.

Stiles looked at Derek oh crap this was bad her claws were going in and out eyes flashing on and off like a disco. He walked slowly up to her and hoped like hell that this was not going to end with him in pieces all over the place.

"Hey Derek it's ok we can fix this don't worry," he tried to sound as reassuring as he could, but Derek snapped and he jerked his hand back from where it had been going towards her.

"Come on now cut that out, you need to calm down come on breathe please Derek."

As Stiles watched Derek struggled to get herself under control, her face slowly becoming human but her eyes were still flashing red and he could see she was fighting to get there. He put his arm around her shoulders and she stiffened for a moment before relaxing slightly into his arm.

"Ok now let's just go sit down and talk this through," Stiles led Derek to the couch and sat gingerly next to her he could feel how tense she was and made sure not to make any sudden moves having an aversion to getting his arm ripped off, Derek suddenly leaned forward and put her head in her hands.

"Holy fuck Stiles I can't believe this I'm a girl this is ridiculous." He almost moaned but with that Derek perpetually angry twist.

Stiles took a moment to take it all in he had to admit Derek was pretty hot as a girl short black spiky hair, long legs, gorgeous full breasts and oh boy firm and toned everywhere, Derek looked up him and sighed in disgust.

"Christ Stilinski get your hormones under control can't you!" He snapped.

"Sorry sorry it's just you know how into you I am and here you are all soft and girly whew it's like Christmas babe," and before he could stop himself he was kissing up her neck.

"Really now this is what you do? You are so dead Stiles I promise I am going to kill you," Derek's breathing had gotten harsh and even as he tried he could not pull away, he couldn't help it when Stiles was turned on his body went into overdrive all endorphins and pheromones. It drove him wild her wild aargh he didn't know what he was, it was bad enough being human and werewolf now he was male and female his life really was one bucket of shit after another.

"Stiles just stop ok," Derek demanded and begged a little, god why did his boyfriend have to be bi if he was straight out gay he wouldn't be attracted to him as a girl at all. Stiles pulled back and took a deep breath running his hand down Derek's face he sat up.

"Right I'm sorry it's just it's you Derek but not you and I just well you know eighteen year old guy and all," Stiles gave Derek the look and Derek knew he couldn't stay mad and to be honest the constant fascination with him and his body and sex at least once a day was pretty flattering, but right now was just not the time.

"Yeah alright but come on I need you to talk to Deaton and find out how to change me back," Derek's eyes had stopped flashing and she was clearly back in control Stiles nodded and headed for his phone.

Erica and Isaac poked their heads around the corner watching their mighty leader to see what she would do, Derek sighed and nodded briefly they both shuffled over.

"Alright boss lady so what's the plan?" Erica asked with a slight grin, while Isaac grimaced and looked ready to run again.

"Shut up Erica, Stiles is calling Deaton," Derek replied with a growl.

"I'm going upstairs stay away from me." With that Derek stomped trying not to hear Erica's giggles while Isaac shushed her, why he ever turned her he'd never know.

Just as Stiles hung up the phone with a frown Scott, Allison, Lydia and Jackson tumbled through the door they were looking haggard, clothes dishevelled, bruised and slightly bloodied.

"Are you guys ok? What happened?" Stiles demanded what else was going on today.

"We were chasing the sorcerer's apprentice, but he gave us the slip after he sent these giant rats after us," Scott replied flopping on the floor exhausted.

"Are you kidding me what is this Disney Land?" Stiles shook his head.

"Only if Mickey Mouse is a five ft rat with a razor tale, will you pass me an icepack Stiles and some betadine?" Allison asked rubbing a long scrape down her arm.

Stiles passed out the first aid to the boys so they could patch up their girlfriends, as they were doing just that Derek came down the stairs he had taken off his jacket and was wearing a pair of Stiles jeans and a white shirt. Stiles gulped Derek was always such a turn on anyway but as a hot chick with a definite swagger he was smokin.

"Who's this Stilinski?" Jackson demanded as the others also stared at the leggy brunette as she descended.

"Jackson is your nose turned off or something it's Derek," Stiles replied casually.

"What!" Scott had yelled while the other three looked dumbstruck.

"He does smell different as a girl you know Stiles you can't blame Jackson's crappy sense of smell on that," Erica had piped up grinning at the discomfiture of the others.

"Get over it all of you yes I'm a girl for now so what I'm still the alpha and Stiles is getting Deaton to find out how to change me back, right Stiles?" Derek looked over at Stiles who caught the faint flicker of concern in her eyes.

"About that Derek Deaton thinks there may be a small issue with turning you back," Stiles leant back ready for the eruption and wasn't disappointed Derek totally alpha wolfed; claws, fangs, red glowy peepers the lot, Stiles sighed having a werewolf for a boyfriend turned girlfriend sure was hard on his nerves.

"Stiles explain now," Derek's voice was low and husky, damn even like this Stiles was turned on he must be a masochist or an adrenalin junkie he thought.

"Ok just try to stay calm ok, Deaton said it will wear off eventually see sorcerers use potions instead of magic so to get rid of a witches spell you kill the witch but a potion just kinda degrades depending on how powerful it is. The giant rats were probably ordinary rats the apprentice gave a potion to, the one he threw at you did it look old or was it fresh?"

"I'm not sure I think he just grabbed a bottle off the shelf, probably old that's good right?"

"Ah well not really see when they're not used potions age like wine getting stronger more potent so like the rat one may only last a couple of days since it was probably a new batch the gender swap one may last a bit longer."

"How much longer?" Derek drew the words out fiercely.

"Probably just like six months or maybe a year," Stiles was speaking softly watching his partners face and yep there it was a momentary flash of total panic that was instantly gone, but every wolf in the room had registered the alphas distress.

Isaac gave a little moan and Erica grimaced Scott looked sympathetic however to Stiles surprise it was Jackson who spoke.

"Don't worry about it last year I was a lizard revenge monster for Christ sake I'm sure you'll be fine as a girl for a while it's not like you're really any different. I mean you're still you isn't he Stiles?" Jackson turned to Stiles who nodded vehemently walking over to Derek and kissing her cheek.

"Of course he is, come on Derek lets go," taking the shaken werewolf by the hand he led her upstairs.

Derek sat on the edge of the bed with her head in her hands, Stiles sat pressing his thigh to hers and wrapped his arm around her shoulders.

"A year Stiles I don't know if I can handle it I mean isn't it weird for you your boyfriend is a girl?" Derek had a catch in his voice.

"Derek you know me I'm totally Dersexual I don't care if you're a boy a girl or a bit hairy wolf thing you're mine," He turned Derek's face and kissed her softly trying to let her/him feel every bit of what he was feeling.

Derek could feel it Stiles was like a drug to him every day he just wanted to be with him more and especially like this when he could feel the waves of love and lust coming off him, so safe so home. And now he was a she and for some reason it felt even stronger she knew female werewolves were more sensitive to emotions and she was getting Stiles vibes with extra sugar on top. She turned herself fully around and climbed onto Stiles lap kissing him fiercely Stiles quickly wrapped his arms around her, her body felt different but familiar it was strangely intoxicating.

Soon all the days pent up stresses were coming out in waves between them honestly Derek could feel herself getting lost in a tidal surge of emotions coming off both of them he pushed Stiles down and they edged up the bed. Stiles was grinning insanely Derek growled and threw off her shirt Stiles eyes nearly popped out as he reached up to stroke one of Derek's beautiful breasts. Derek hummed with pleasure so Stiles pulled himself up and began licking and sucking at Derek's nipples whilst holding onto each breast gently. Derek's back curved and she pressed Stiles mouth on further, Stiles was definitely happy to go along with this. Then Derek lowered her face back down to Stiles' lips soon they were both kissing licking and nipping at each other, normally Derek restrained himself worried he may hurt Stiles in some way but not tonight. She felt free and Stiles was responding urgently she had felt his hardness pressing against her and as she licked her way down she took him in her mouth rolling her tongue she listened greedily to his moans and pants. She realised at some point all their clothes had come off she wasn't sure when, but she could feel wet slickness between her legs she also felt an almost desperation to be touched there.

She guided Stiles hand down and his fingers slipped easily inside her causing her to whimper with pleasure.

"Oh my god no lube tonight babe are you sure you want to?" Stiles had stopped and was looking in Derek's eyes.

"Yes want now," she replied her fangs protruding a little.

"Ok cave wolf but tell me to stop if you don't like it alright." Stiles grinned up at her the shine on her skin, her little pants and moans it was all driving him wild he hoped she didn't want to stop as trying would probably give him a heart attack.

Finally he slid inside feeling everything warm and wet she was sitting astride him while he lay back and watching her face was like the best porn ever. Derek began to ride Stiles and oh it was so good he watched her when for a moment she grimaced he froze but then she smiled and continued he could feel himself getting ready.
"I can't hold on much longer oh god so good I love you."

"Now yes now come with me Stiles yes please," Derek's words drove him over the edge and his orgasm rolled through him he felt hers as she tightened around him squeezing every last piece of him till it was almost painful. They lay together still joined both sated her head resting on his shoulder he gently ran his fingers down her back, finally she managed to ease herself beside him pressed against his body she yawned and stretched.

"Hmm I need a shower how about you?" She asked dreamily.

"No I'm good," he sighed contentedly.

When she got up he noticed a patch of red on the bed sheet.

"Derek are you ok are you bleeding?"

"Don't worry I'm fine werewolf remember," she turned well so that's what sex feels like for girls a much more whole body experience than for guys.

She was definitely doing that again and soon she washed herself off feeling warm and strangely energised that's weird as a guy he always felt exhausted after sex but now she felt ready to wrestle or eat. Hmm eat and then wrestle Stiles sounded good she dressed and headed downstairs food first.

"Hey Derek how are you now?" Isaac asked hesitantly.

"Yeah I'm fine just hungry."

"No wonder after all that geez Derek you are such a slut, a girl for one night and you're already giving it away."

"Shutup Erica," Derek snapped although it was pretty halfhearted she just felt too damn good to care what blondie said.

The phone rang and Lydia picked it up, she listened for a moment before handing it to Derek.

" Derek it's Deaton here I just was thinking about your little problem and look just wanted to warn you these potions can be pretty potent so be careful what you do."

Derek felt a slight sinking in his stomach were things going shit bucket again.

"What do you mean careful of what?

"Well for one thing don't have sex for now ok until I've had a good look at you, I mean not that I think you would right now, but I just thought a little warning in case anything precipitate happens." Deaton laughed a little.

"Oh right, but what if there has been some precipitating?"

"Really, well then come see me first thing tomorrow I mean I'm sure everything is fine but we'll have a look ok."

"Yeah right," yep shit bucket.