Based on the story: Underestimate Me by finnickyfox: https://archiveofourown.org/works/27755611

S01e12: Code Breaker
Parking Lot Scene

Plot Twist
Alternate Universe
BAMF Stiles
Alpha Stiles

Dark fic

Mentions from Buffy the Vampire Slayer

Stronger Claim

PETER: Don’t you understand yet? I’m not the bad guy here.
STILES: You turn into a giant monster with red eyes and fangs, and you’re not the bad guy here?
PETER: [bemused] I like you, Stiles. Since you’ve helped me, I’m going to give you something in return. Do you want the bite?
STILES: What?
PETER: Do you want the bite? If it doesn’t kill you– and it could– you’ll become like us.
STILES: Like you?
PETER: [impatiently] Yes, a Werewolf. Would you like me to draw you a picture?
PETER: That first night in the woods, I took Scott because I needed a new pack. It could’ve easily been you. You’d be every bit as powerful as him. No more standing by his side, watching him become stronger, and quicker, more popular, watching him get the girl… You’d be equals. Maybe more.

People always underestimated him, even his father. And especially those who should know better.
When his mother had been alive, she had been the volunteer everyone counted on to be there for everything. And it was always a given that he would be with her if he wasn’t in class. He was already well known around the town, even before his father became the sheriff. What this wolf version of Angelus had not taken into account was that if he wanted to, he very well could have taken over the school any time he wanted too because of his mother. The fact that that held nothing for him never seemed to click for those who only saw things in the name of power.

PETER: Yes, or no?

Stiles was a protector. A guardian. And never did see the world in black and white as Scott did. But vast hues of colors in grey.
Power for power’s sake meant nothing to him. He could get that any time through his father like Jackson did. But power to protect? That was different. And his research lent him the knowledge to get it in this situation.

He put forth his left wrist, as though unknowing what he was doing. And Peter took it hook, line, and sinker. Dug down into the deep well of everything that he was. Everything that identified as him deep down when you peeled away the onion layers and laid him bare. And held on tight and Peter gave him the Mate’s Claimant’s Bite.

He felt the burning pain of the bite and the power racing up through his blood stream seeking to remake him in its own image. And right behind it was Peter’s mind and soul seeking dominance over him.
To Claim him in all ways.

While he was willing for the one, he was not for the other, and his mind. His own power took control of his side of the thread now slowly tying them together. Seeking to make them as one.
If he was going into this, he would go in as Master. As an Alpha in his own right. Not a Childer to Peter’s Angelus. And not submissive.
He took Peter by surprise by taking control of the link and savagely ripping it from him. Locking Peter in his own mind and away from his links to his betas. Including the nascent link to the newly awakened banshee.
Literally ripping the Alpha Spark from him to take unto himself in all his savage glory. Peter’s fearful look at the smirk on his once prey saying everything there was to say.

No longer the Alpha Master, he was the Sigma now. The official Pack Tutor and nothing more. Not Left Hand. Not Alpha. Not High Rank. But a Low Rank who overstepped himself. And who was now subservient to the rest of the Pack.
A submissive in all but name now.
One who held dark blue eyes to show his willing guilt over murder.

Stiles’ change has finished now. And he patted his Childer/Pup on the head at his whine as he crouches at Stiles side. He reaches out through the links to the line that Peter once had, and obviously never knew how to use. And grinned an evil grin. Pulling his phone from his Pup’s pocket, he texted Tara to call him quickly as he had a 911.
Getting a call back immediately. He told her something attacked him in the mall parking lot on the lower level. Also, whatever it was, it seemed to get them near a car that smelled of decomp. Could she send help and forensics? Mentally shooing Peter off to the hidden cabin, he had been staying in. While he waited.

He hung up from that and called in a kidnapping and hostage situation at the old Hale house under the basement. Someone with a grudge had kidnapped the last sane Hale and was holding him there. And left it there. It was good to be the sheriff’s son sometimes.