Hi! So this is just a teen wolf one-shot, basically, I don't think that it should be Malia that's Peters daughter., and personally, I think Peter might have suspected that it was Lydia in the latest episode, so here is how I think it should have gone.
Enjoy!
He knew.
He knew from the moment that she, Lydia Martin, had told that he wasn't only an Uncle. It had all become crystal clear in that one, infinite instant.
There had always been something about her that had called to him, he had thought it was merely the call of a Banshee. Then, she had revealed to him that he wasn't only an Uncle and then, he knew. He knew and he had begged her to tell him, to affirm what he felt to be true with every fiber of his being, but he had frightened her. The Argent girl had electrocuted him and they had run away, run away from the monster that lay weeping on the floor. She had looked in his eyes one last time and he had seen that she knew too.
When they had called him to the McCall household, he had all but run there in his haste to see her and once again attempt to get her to tell him the truth. He saw the worry in her eyes, worry for her friend. Worry for the poor boy who had been possessed by the Nogitsune.
He had eventually, after her promising that she would give him the name of his child.
Then he watched, feeling nauseous, as Scott had sunk his claws into her neck.
It had not taken long for that to backfire.
When Melissa McCall had pointed out that she was bleeding, he had felt his heart stop. He had held her face in her hands, oblivious to the strange looks he was receiving from the other occupants of the had called her name, told her that she was strong enough and hoped and prayed to any and all deity's that she would be okay.
The minutes that it had taken her to wake up had felt like hours, and he had almost cried when her eyes had fluttered open. he had helped her up and almost dragged her to the corner of the room. He had demanded that she give him a name, demanded that she give him his recluse, ignoring the other Werewolf's demands of 'what name?'.
He knew, and when she leaned up to his ear, he had almost shuddered in anticipation, then she had whispered what he already knew, but had made his heart swell in his chest as she told him 'Lydia Hale'.
He had almost swooped her in to his arms right then and there as his squeezed her wrist and began to feel tears burning in his eyes.
Unfortunately, their reunion had been interrupted as Stiles began to pull bandages from his throat, he had wanted to shield her, his daughter, from the horrific sight. It was soon over, he heard a tiny sob escape from her throat.
But then the bandages began to move and a bandaged hand began to rise and they had all backed against the wall, him communicating his need to protect her by placing an arm in front of her, as she clung to the back of his shirt.
Then the thing had lurched towards them and he and Scott had lunged at it, grabbing its arms in an attempt to restrain it as it thrashed around. But suddenly Deaton was there, and he told them to wait as the wrappings were removed to reveal Stiles. It had seemed to good to be true.
But then they realized, if that was the real Stiles, then who or what, had been behind them? And they turned around, and the other Stiles was gone.
And so was Lydia.
And as Scott had run out of the house, calling her name, Peter had been to shocked to move, as he realized that the daughter he had only just been affirmed to have had, was ripped from his life once again.
And as Scott returned to the living room, where Peter was still frozen in place, he looked into the boys eyes and he knew that he had heard everything.
He knew.
