(Sooooo here's an odd idea, set during Season 3b and instead of Malia being's Peter's kid what if it was Stiles?)
Nogitsune is gone, John reach out to Stiles and pulled him into a hug seeing the colour and warm return to Stiles body. Teen smiled tiredly at him and held onto him. John looked up at to see Derek and Scott looking at them "I'm going to take him home." He said
"N…No dad." Stiles said, he felt so tried that he just wanted his bed, he just wanted to curled up with his wolves and sleep
"Stiles the Sheriff is right go home have a bath and sleep." Derek tells him with a soft smiled that wasn't missed by John.
They got though the front door and Stiles stood there looking around the hall away, he breathed in the scent of his home and felt it warped around him making him feel safe. "Stiles?" John called to him, Stiles turned around and looked at him a wide eyes look "Why don't you go and have a long shower I will do us something warm to drink." He smiled at him, there was a weak smiled back as the teen climbed the stair to the bath room.
He stood under the shower's hot water and closed his eyes as he let his hands clean the dirt off him, he felt like he is caked in dirt and darkness and he just wanted it gone he wants to feel whole again. He guess it will take time for him to recover for things to go back to being semi normal again, he lost track of time as he heard the bathroom door knock gently and Stiles turned the shower off grabbing a big towel and warping it around his waist "Yeah?" He called out.
John open the door and looked inside "Sorry you were a long time I was just worried." Stiles looked at him blankly for a moment before smiling at him
"Sorry dad I was just…there was a lot of dirt to get off." He told him with a fake smile, the sheriff frowned
"Okay well come down when your dressed I got our drink ready." He smiled at him, Stiles nods and let's his dad close the bathroom door.
They sat in the sofa in silence drinking their hot chocolates. John started to think about at the hospital when Stiles went for his brain scan, he closed his eyes and thought of that night.
'He stood in front of Stiles as they waited to be called in, he thought his son was dying and he couldn't stand by and let the one big secret slip him by…Stiles has a right to know… "Stiles I need to tell you something." He said he didn't care that Mellissa and Scott was there he need to tell him this
"I know dad you love me." Stiles smiled weakly, John smiled sadly at him and kissed his forehead "Dad?"
"It's not that, it's something that me and your mother kept from you since you were born."
"I have a twine?" Stiles asked "I'm a girl?"
"Stiles. No it's not that your mother before she married me she was dating someone else… she left him because he is unstable." The teen frowned
"Ooookay?" Stiles said, not understanding where this was going
"She was 6 weeks pregnant when we started dating and you were 1 years old when we married."
"Hold on wait are you telling that I am…" He asked
"I'm sorry son, it's not something I was going to keep from you, and you have the right to know especially since you know who it is." Stiles head shot up
"What?" Both teens in the room said at the same time.
Scott walked over and stood next to Stiles as they both looked confused at the Sheriff "Who?" Stiles asked "It's not Deaton is it?" Stiles asked
"What? No Stiles no, it's… Peter Hale." The Sheriff said watching his son's face. The sickly teen froze and looked at John waiting for the man to say it's a joke but it didn't come instead Stiles walked up to him and warped his arms around his shoulders
"I don't care if he is, you're the only dad I want." Stiles whispered as he buried his face into the Sheriff's shoulder.'
"Stiles." John called to him as he turned to look at him. Stiles around at him both were so tried after everything that has happen with the Nogitsune and the death of Allison and Aiden they were just to tried to even be emotional
"Yeah." He asked tiredly
"What I told you at the hospital in front of Scott and Mellissa?" He asked "We never got a chance to talk about…it." He said with a worried look on his face. Stiles pulled his knees up as he turned around and curled up on the sofa to look at him
"I told you then and I will tell you now. I don't care about Peter he isn't my dad you are, he wasn't there as I grew up he wasn't there when mum died and he's been nothing but a pain in my arse since he bite Scott, your my dad not him and nothing will change that."
"What if he bite you?"
"What if he did? That won't change anything dad as far as I see it I am your son and Peter has no claim on me." He told him as he sat there looking at him "Tho I wished you told me sooner then I won't have slept with Derek." Stiles mumbled
"Derek was adopted." John frowned at his son as he told him that he slept with Derek Hale a man who is 10years older than his son
"So me and Derek are not going to hell?"
"No you're not, but I want to talk about why did a 27 year old sleep with my 17 year old son?" Stiles looked guilty about it and smiled weakly
"It's a story best for another day." He said yawing "I'm going to bed." He said as he stood up "Don't worry dad I still love you." Stiles said as he turned to walk up the stairs to his bed room.
He stood in his room seeing the pitchers and red string on the walls, and he felt a rush of anger as he walked over to them and pulled it off his wall and into the bin he didn't stop until he felt a hand on his shoulder. He jumped and looked at the two wolves in his bed room "God damn it, is it give Stiles a heart attack week?" He asked looking at Scott and Derek. Derek walked up to him and warped his arms around him and nuzzled his neck
"Scott told me." Derek said, the teen froze and looked at Scott
"Yeah?" Stiles narrowed his eyes at him "You could have told me you were adopted." Stiles asked him, Derek pulled back and rubbed the back of his head in shame
"You're adopted?" Scott asked with his wide eye puppy look.
"Ummm yeah I was, long story." Derek said, that was it no more was said on that subject.
Biting his lip stiles as he looked between his two wolves before asking "D…Does Peter…?"
"No, well not who, but Lydia knows." Scott said, Stiles groaned and moved to his bed and fell onto it
"Great he won't leave her alone now or any of us." He sighed, Derek moved closer pushing him up and then sitting behind him before pulling him back down, letting Stiles rested his head on his chest as Scott walked over and laid down resting his on Stiles stomach
"Don't worry we will deal with Peter." Scott said, Stiles nodded and frowned realising they were missing a blond wolf
"Where's Isaac?" He asked, Scott tighten his hands on Stiles' shirt "Awo?" Stiles gasped "No claws!" Stiles whispers
"Sorry, it's a raw area he's gone to Chris' they are…"
"Comforting each other." Derek said quickly. They all laid there quietly for a long while listening to the heart beats in the room until Stiles feel a sleep and the wolves just feel a sleep curled around him.