Week later …
Scott was pissed, well his wolf was pissed off. He paced in front of Deaton his shifting not behaving like it should because the wolf is pissed off, he turned to the vet and looked at him his mouth filled with fangs "Why am I do angry about this! I didn't know Stiles was a human Omega even as a wolf why am I know like this!" He growled as he felt his claws bury themselves into the palm of his hand.
"Because your wolf knows you lost an Omega." Deaton told him for the hundredth time that week
"Why? I never notices before I didn't even care?" He asked as he wiped his hands on his jeans before looking up at the older man
"You didn't notices because you have no need to notices, Stiles has been your best friend since you were children and you're… brother thought thick and thin and also he is your right hand man you didn't notices because you didn't need him to be that. Derek knew from the moment he met him even Peter knew born wolves always know." Scott lowered his head and snarled a little before looking back up
"But he is part of my pack!" Scott snarled at him
"No he is part of two packs, the Hale's and the McCall's. Scott once you see Stiles again you will not be feeling this anger and disappointment will fade." He smiled at him as he placed is hand on Scott's shoulders.
Derek and Stiles went to Stiles' home to find the whole pack there and it made Stiles swallow thickly as he watched all the eyes on him "Crap I was hoping to sneak in." Stiles said as he looked around at every one, Erica was smirking at him along with Isaac and Boyd. Lydia had a told you so look and looked like she was already plotting the wedding and the first child he and Derek will have. Then there was Kira and Liam who looked stun as Stiles had walked up to his son and sort of son-in-law. "Dad?" Stiles whispered
"My son is still in High school."
"I know Sheriff, I was going to wait until Stiles was 18 but the hunter…"
"Fucked up." John said as he cleared at Derek as Stiles looked between the two and was worried about what his dear old Dad would do. "You know he can become pregnant." That had Stiles snapping his head back towards his dad and his mouth dropped
"He might already be." Derek answered
"Death wish much." Erica mumbled
"Wait you knew I was a human Omega and you didn't fucking tell me? How many bloody alphas have I met? How many of them have tried to get in my pants? You didn't think this was important to let your only son know that he is werewolfnip?" Stiles ranted his eyes didn't turn amber, not even blue or blood red no they turned a nice shade of purple that had many in the room taking a step back.
John open his mouth and then closed it again as he watched his son growl at him "Stiles I'm sorry, I just never thought you would be dragged into the supernatural world." He said as Stiles huffed and walked towards the kitchen
"I'm making dinner." He mumbled as he walked away from his dad.
"Why was his eyes purple?" Kira asked before John could talk again
"He was a human omega and now he is a wolf their eyes are always a little different." Derek said as he stared at the Sheriff who walked after Stiles into the kitchen.
"Stiles I didn't think you would be running with wolves." The sheriff told him as he stood on the other side of the counter, the teen turned his head and looked at him clearly showing he was hurt at his father's secret
"No but once you knew you should have told me?" He told him as he went to the fridge
"I know I know, I was just scared if you know you would tell Scott or Derek. Your mother was scared shitless when she found out you were a human Omega, she masked your scent has things done to the house just to make sure you didn't smell like one." Stiles sighed and looked at him as he put some food on the table
"Dad, I have had many-many alpha trying to get into my pants from day one apart from Scott."
"What about the locker room thing?" John asked, Stiles raised an eye brown and tilted his head
"He was still learning at that point." Stiles muttered "And he hasn't tried since." He told him as he looked up at his dad
"You should have seen him when he found out you're an Omega." Stiles re-raised his eye brow at him as he got out the chopping bored. "It's just I didn't like the idea of you not having a choice Stiles, if an alpha found out that was it. You would belong to him and he could have taken you away."
"Derek isn't taken me away Dad and he's been good to me this last week, I'm still going to go to school and I am going to go to college even if it has to be through the net." He smiled at him before handing him a beer. John smiled and kissed Stiles forehead.
In the coming months the pack learn that wolf Stiles as a think for black shinny leather or just dark clothes and they also learn that Stiles was bad arse when it came to protecting the pack. A female alpha came to town and had her sights on Derek regardless if he had a mate or not but when the pack got in the way she slice Liam and Isaac's chests sending the mama wolf in to a frenzy. Stiles had not only ripped her throat out with his eat but he had ripped her a part until she was a pool of eeeew. There was lot of cuddles that night from the whole back and then just Derek who fucks Stiles into submission.