wait. I have a twin?

Your unicorn?...I don't think so

Kayla woke up with a flutter before she met those pair of baby blue eyes that belonged to her angel. "morning guardian angel" she purred before nuzzling into him. "it's a good thing that I don't sleep morning" Cas said with a smirk. "any good dreams?" "you know what they were cas" Kayla sassed through his chest making him chuckle "you got me." he said with a smile at her. All of a sudden they were hearing distinctive conversations from the other side of the wall.

"how the hell are you still alive Meg?" Sam snarled 

"As I said...Daddy, loves me" the bleach haired female voice said with a mischievous smirk 

Kayla heard Cas growl from beneath "that demon won't leave me alone" he mumbled 

"I'll be happy to kick her ass" Kayla said in a monotone. Cas smiled and brushed her chin with the back of his index finger not saying anything. 

Meg was seeming to be sniffing "a human female..this is gonna be fun"

"Don't you dare touch a nail on her you bitch!" Dean growled gaining up on her 

"oh relax!! I just wanna make some girl friends" 

"not a chance" Sam said snarly with a glare 

"why not?"

"because she has  no interest in being friends with an annoying bitch like you" Kayla's voice came from behind her. 

Meg gasped "you must be Kayla" she sneered with her mischievous smirk  

"you must be the annoying bitch Cas talks about"

Meg gasped again and seemed like she fangirled "my unicorn! how is he?" 

"better now that he has a proper girlfriend" Castiels voice was heard from behind. 

"UNICORN!" Meg squealed before running up to him and jump hugged him which made him grunt with an "ooff" without hugging her back. Kayla rolled her eyes and scoffed. 

"meg" Cas simply said annoyance clearly trailed in his tone 

"aren't you happy to see me?" Meg asked with a huge grin

"do I look happy?" Cas asked narrowing his eyes "would you please get off me?" 

"why?! Don't you love me?" 

"I never did" 

"well...clearly you used to, I mean you were the one to kiss me?" 

"that didn't mean anything! I saw a pizza man do it on tv with a girl and you were the only girl I could try it on to" 

"aahhh!! but still doesn't change the fact, you're my unicorn"

"get off me!" Cas gave her a glare making her get off him like a kicked puppy before Cas walked over to Kayla and wrapped an arm around her "this! is the woman I love. Deal with it." Cas told her coldly gripping Kayla tightly as ever making Kayla smirk

"you stole my unicorn!" Meg screamed at Kayla 

"I didn't steal anyone! he happened to pick me when you 2 were never really actually together!" Kayla stood up now taking the fight home but keeping her voice low. 

Meg scoffed and advanced more on Kayla causing the brunette to walk more closer to her "he was mine! He kissed me!" 

"well trust me, sweetie, he kissed me far more than he kissed you! that was only one kiss you swooned over! Imagine being under his arms.in bed. feeling the warmth, Oh honey... you unlucky demon... Cas will never fall for you...he's an angel.. and you're a demon. I for one feel so lucky to have him be my guardian angel" Kayla tormented the bleach haired demon making her nostrils flare 

"back off my unicorn skanky bitch" 

"HEY!" The men yelled in unison Kayla raised her hand for them to stop still not taking glance off the demon 

"listen here...I don't wanna fight... I already have him..you in your other case never had him once... so why don't you take your ass back in hell and leave us alone?" Kayla's voice was dangerously low with a glint of glare glistening through her hazel eyes

"I will not take no for an answer! Unicorn, tell her!" She exclaimed looking at Castiel which was only answered with a roll of an eye 

"I am not your unicorn! quit calling me that! what I am is Kayla's! accept it! or the punishment for you won't be in my hands" 

"like I'm scared of any punishment"

"trust me Meg. Kayla's punishments are way off base than the torments you do in hell" Cas warned making Kayla smirk at Meg showing that she will win if she won't back off. Meg glared "oh please!" Kayla's head tilted back before she grabbed her off guard and grabbed her by her neck pinning her to a chair and chaining her to it before pouring holy water on her making her scream her demonic scream and fighting to escape already 

"so..what were you gonna say?" Kayla kept on tormenting bending down to face 

"my...unicorn" Kayla grimaced at those words before pouring, not splashing, pouring, holy water on Meg's face before Kayla ripped her shirt off and she grabbed a demon knife, poured some salt and holy water on it and began to trace random lines and shapes on meg's chest hearing Meg screaming and begging for her to stop made Kayla ache to do more but Cas calmed her down 

"Kayla. Honey. Calm down. She got her lesson" Kayla looked up at him and sighed before looking at a breathless Meg with sheer fear in her eyes. Kayla bent down next to her and unchained her from the chair while doing so she began to sexually terrorise her as she used her tip of her tongue and licked between her breasts before she was done. She went back up and unchained "so...what is Cas to you Meg?" Kayla asked one last time. 

"a..An angel friend." Kayla pursed her lips at that while shrugging 

"better" Kayla said giving her a tight smile. "You can.... I don't know..vaporise? or I don't know what you guys do to leave" Meg sulked and disappeared. Cas, Dean and Sam just stared at her eye widened "kitty...wh...what was that?" Dean asked with light terror in his voice "that was a message. If anyone get in between me and Cas...they have price to pay" Cas smiled at his girlfriends words "woaw...y..you really don't like sharing huh?" Sam tried to make humour cover his fear from his own twin. "nope! not even my brothers" she smiled now being her normal self. Sam and Dean put up a small smile at that "you would do those things for us?" Sam asked softly at her

"Yep! I did it for Cas, let alone blood family, Sammy bear." Kayla said moving towards him before she hugged him, Sam stiffened but then relaxed knowing that she will never hurt him like she did with Meg just now. He gently wrapped his arms around her and just held her close to him. Dean relaxed seeing everything is fine. Cas smirked at all this...Kayla did all those for him..and he couldn't be more thankful. 

*CASTIEL'S P.O.V*

Not that I didn't know how to defend myself but I tried so many times to get rid of Meg and nothing ever worked... but Kayla only fought once and Meg just disappeared. I love her! dad! She's so perfect! Her confidence, her bad-ass side, her tough and reluctant characteristics when she's on her hunting work. She's amazing!  I love a girl who can take care of herself like she does. I don't need whiny and needy girls like Meg. What is a unicorn anyway? I don't understand that reference. While Kayla..Kayla calls me her guardian angel...I couldn't believe it...I'm a fallen angel I don't deserve to be called that but she does... she still sees me as a full angel no matter what. I truly appreciate what Kayla does for me. She's just...amazing.