Chapter Text
**Sam’s POV**
You sped back to the motel you were staying at with Dean. You couldn’t wait to discuss what had happened. Hopefully your dad’s journal would have a clue. Something that would explain a human having powers like that. But what if… what if she wasn’t human. You shook the idea from your head. She must be. She was more surprised than you were about the ‘outburst’. There had to be an explanation, there just had to be.
Parking the impala in front of the room you step out of the car to be greeted by Cas opening the motel door.
“What happened?” he asks before you have a chance to open your mouth.
You walk towards Cas and he places a hand on your forehead before letting you enter the room. You see Dean sitting on the edge of the bed behind him looking worried.
You can feel Cas’s grace resonate through you, searching. “It’s not him.” Cas states, looking back at Dean.
“No shit Cas, I already told you that.” Dean snaps.
“What’s going on?” you ask, now addedionally confused.
“Cas seems to think you’re some mutant and not my biological brother” Dean replied, getting up from the bed and pulling you inside. He looks around the empty lot before closing the door behind the three of you.
“Sam,” Cas begins, “20 minutes ago I felt something. All of the angels did. My communications with heaven were overloaded with talk of… how do I say it… a demi-angel.”
“Wait, wait,” you hold up your hands, “Before you continue I need to tell you something. I was out with a girl. Y/n. Long story short, after dinner we were confronted by demons… and they wanted my vessel.”
“WHAT?” Dean interrupts
“Listen Dean, it’s okay…I think. You see, when I agreed to give it to them –“
“Jesus Christ Sammy” Dean turns in exasperation and runs his hands through his hair.
“When I agreed…Y/n had this sort of ‘power outburst’. I don't know what to call it. She cast the demons from their bodies, Dean. I don’t know how she did it and clearly she didn't either. I had to tell her everything and that, and I said I would talk to you about it, and go back to her in the morning.” You explain to Dean and Cas.
“Tell me more about this Y/n,” Cas asks looking directly at you. He didn’t fully understand the concept of personal space so you had to take a step back and sit at one of the kitchenette chairs.
“Dean and I met y/n yesterday. She was a student doing a placement in the autopsy room or whatever. She gave us some answers and essentially confirmed we had a Pishtaco on our hands,” You and Dean had taken care of the pishtaco this morning. ”Anyways, I thought I would, I don't know, ask her to dinner and she agreed. She just seemed like a really nice girl!” You found yourself becoming a little defensive. “So, tonight I picked her up at her place, briefly met her roommates and we went out. Dinner was fine. She’s studying to become a doctor to help people. She talked about her parents –“
“Are they both alive?” Cas interrupted.
“Yea. She has a younger sister and older brother as well. They couldn't be more normal.” This is where you begin to feel guilty. “After dinner we left the restaurant and the demons came. I’m an idiot. I shouldn’t have asked her out.”
“It’s too late for that Sammy,” Dean says which doesn’t make you feel any better.
“Please continue Sam,” Castiel requests. “When was the surge? What was it like? Did it have a colour? Sound? Feel?”
“Yea, yea umm…” you think back, “So the demons gave me a choice, surrender my vessel or they would kill Y/n. I agreed.” Dean rolled his eyes but you pretended not to notice. “The demons said Lucifer was on their way, and I think they said they wanted to hurt me. This is when Y/n fought back against the demon restraining her and she, um, shone? Glowed? I’m not entirely sure”
Cas looks more intrigued, “Describe it.”
“It was white. The light was white with a bit of blue. Yea, I remember seeing blue. And it felt warm. It left her in waves. I didn’t hear anything though. All I remember is the blue-white waves leaving her in waves and it was silent. Silence like when you go underwater and all you can hear and feel is your own heartbeat. It was heavy like water too.” You did your best to describe the manifestation.
“Are you sure it was white and blue?” Cas asked,- eyes still not leaving you.
“I’m positive” you nod your head.
Cas sighs, “That's a relief.”
You give him an inquisitive look, “You know what happened?”
“Unfortunately, yes.” Cas was always very ‘matter-of-fact’ when he spoke. “Sam, Dean, 25 years ago heaven conducted experiments on humans.”
“I already don’t like where this is going,” says Dean as he joins you at the table.
Cas continues, “We chose strong human females in the hopes of making a secret demi-angel army incase it was ever needed. Sam, you were involved. The yellow-eyed demon chose you when you were six months old with the intention of you, and others, bringing on the apocalypse. We were doing choosing of our own. Hell had it’s method of choosing children, but for angels, its not so simple. We needed to conceive children with human women. We wanted our own army on earth incase the demon’s had succeeded. I know you both know how that played out…”
You and Dean look at eachother.
Dean breaks the silence, “But Cas, you said you may have made a mistake about Sam.”
“Sam’s importance is known by all angels. But the surge we felt… I needed to be sure”. Cas’s tone was apologetic.
“I don’t entirely understand. If the angels had made an army…where are they?” you inquire.
“The trials were unsuccessful. Or so we thought.” Cas hung his head. “We couldn’t leave heaven and mate with the humans so the angels involved did it though a dream.”
“Immaculate conception?” Your eyes were wide.
“You mean we have a bunch of secret Jesus’s around here and no one knows?” Dean’s voice was raised.
Cas raises an eyebrow, “No, not at all like that. Christ was the Son of God. He had a purpose which he knew from the moment he came into this world. This was an attempt to make demi-angels. The mother would consent in her dream and events in the following day would make it look… natural. The offspring wouldn’t know what they were until faced with evil. But it was a failed operation. All of the women chosen died during the pregnancy. We thought it could work because humans can consent to letting us borrow their vessels. Having a powerful demi-angel mature inside a human conclude to be too difficult for the body. It took too much energy to grow. Or so we thought.”
Could Y/n really be a demi-angel? You thought. “How do you know Y/n is one of these?” you ask Cas.
Cas joined you and Dean at the table and grabbed a piece of paper. “Your description fit the desired results perfectly. You said the surge was white, with blue.” he began to write the criteria, “She is definitely part angel. That is indicated by the white. The blue symbolizes her domain. Its for wisdom, mystery and curiosity. We had other fields too. Hoping the children would excel in their domains and subconsciously groom them selves for their ultimate undertaking. Red would be for strength and bravery, yellow for loyalty and love, green for compassion and hope…” he trailed off. “I can’t believe one survived. Her powers must have ignited when confronted by the demons. She saved you Sam. Demi-angels were said to be very powerful. You said she cast demons out of their vessels? Wow…and now all of heaven knows one has been awakened.”
“A demi-angel has been awakened”, you whisper.
Dean looks between Cas and you, “Is she dangerous?”
“No, I do not believe so. She was created to oppose evil, not contribute to it.” Cas explains.
“Good, good.” Dean nods.
It was a lot to take it, and you had a million questions. You wondered what was going through Y/n’s mind, assuming she was awake in her home. “Cas, you said the angel line was buzzing with news about her ‘waking’. That means only heaven knows about her? Right?”
“I’m not sure. A force that strong appearing on the map out of nowhere could draw attention from anyone.” He pauses, “Sam, I think we should go to her tonight. She’s going to be a target and may need protection.”
“Protection from heaven?”
“Of course. Her kind was a failed experiment. Other angels are going to think she is unpredictable. I felt the surge, but I didn't know it was from facing demons. They won’t know that either.”
“Alright,” Dean stands up, “let’s go.”