Castiel and Deans kids?

The truth

No ones pov
Everyone is sitting on the floor for John to tell them how he got stiles and Alice.
John got home at 9:00pm. Everyone is staring at him hard core. "Why is everyone staring at me." John said freaking out. "Tell us about me and stiles about parents please daddy you promise us the you will tell us." Alice said upset. "Ok" is all he said.
18 year ago
John and his beautiful wife Claudia couldn't have kids which was sad and the same year they find out that she has frontotemporal dementia and her life goal was to have kids a boy and a girl either from her or adopted. One day while John was at work and Claudia was at home doing housework because she can't work because of her  disease.
Claudia's pov
I was in the living room watching Ellen when there was a knock at the door. I went to answer it and there was a man in a dusty trench coat how odd oh poor thing. "Yes may I help you." I said to the man. "Yes can I trust you and your husband to look after 2 special gifts for please." What 2 special gifts is he talking about I'm confuse by this man. "Sure me and my husband can look after your special gifts." Then all of a sudden there was two high pitched scream. So I look down there was two babies in a big basket with the words Alice Lucifer Winchester and stiles Michael Winchester sew in 2 blankets one blue (a boy) and pink (a girl). I was confused so I ask him why. "What are the 2 special gifts sir." I ask him really confused By now. "These two are the special gifts my kids please look after them." He said " you and your wife must be sad to let them go." I said sadly "actually I'm there mother and their father has no clue and I just want them safe until it's safe for them to come home please can you care for the for me please." What he's the mom what the fuck I just went with it. "Yes I will by the way I'm Claudia." "I'm castiel and I'm an angel of the lord." And with that he vanished in thin air. I took the twins in side I decided to call John.
I told John about what just happened and that I wanted adopted the twins. When he got home we got supplies for the new members of the Stilinski family tree. I loved Alice and stiles up until I died.
Back to present
"And that is the story of how you two came to this house goodnight." John said and ran as fast to his room locked his door and went to sleep.
Everyone was shocked but they we'll deal will it tomorrow.
Far away from beacon hills in a room inside a bunker laid in bed looking at pictures of Alice and stiles is the same man in a dusty trench coat is see how different there changing from baby to child to teen and to adult. And he still can believe no one saw him at his children graduation taking pictures because he wasn't using his grace to make him invisible. But soon he saids to him self that real soon they will meet their real family. And he can finally can tell the father of his children the truth.
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What did you think about this story please comment and tell me some ideas please thank you for reading this story
And ps I started my first year at college so bear with me thank you