(So I don't really know a whole lot on intersex, just what is on the internet and accounts from actual intersex people. With Nate, he's a near half and half but the female reproductive organs are a bit more dominant by like 10%. That being said, I think that would elicit his body to menstruate, but I'm not totally sure. Hell, I just had this idea and was like "yeah, Imma write it" which is how most of the things I write tend to go. Read, review, enjoy!)

Nathan had been experiencing stomach pains all night long, and they had become increasingly worse when he woke up the next morning. Something was wrong, he could feel it. Shifting in his cot, he felt something wet between his legs. What was odd was that he didn't recall having any sort of wet dream, but maybe he just forgot about it. Flicking on the old lamb beside him, he was startled when he saw red. Tossing his thin covers aside, Nathan panicked at the sight of a bloody puddle the size of a baseball.

"Sully." He called. He didn't know what to do. The blood was coming from him, no doubt, and between his legs as well. Was he sick? Injured?

"Sully!" Nathan called out, louder this time. He could hear the bathroom door of their tiny hotel room open up and saw Sully shuffle out.

"You alright kid?" Sully first noticed the panic on Nate's face, then he took notice of the blood.

"Whoa Nate, what happened?" Sully's voice was hushed, trying to calm the scared teen.

"I-I don't know I just woke up in pain and there was blood. Am I going to be okay?"

"Of course, we should just clean you up and then get you to a doctor. Does that sound okay?" Nathan nodded, clutching his stomach in fear and in pain. This made Sully a bit more worried.

"Hey, how bad does it hurt. Scale of one to ten and be honest about it." Nate thought for a moment, wincing.

"Definitely a seven. Everything hurts, my back, my stomach." Sully felt for the kid. He was tough as they come, so if this was a seven for him, it must be bad. Telling him to lay down for a bit, Sully got some clean clothing and a hand towel to help soak any blood up.

"Okay, you clean up, keep the towel to soak up any more blood and change into some clean clothes. I'll call a doctor." Nodding, Nathan walked to the shower, closing the door behind him. He could hear Sully speaking on the phone. Stripping down, he tossed the bloodied clothing onto the floor and hopped into the shower, turning on the hot water to help soothe his back. Grabbing a bar of soap, he began washing away the blood, trying to figure out where he was bleeding. He was out of luck though, because nothing felt different down there. At least, that he knew of. Despite being a smart kid, his knowledge on anatomy wasn't the best. In the orphanage, they didn't really teach you about your body, and being on the road with Sam, he didn't really learn more than what a penis and vagina was. He didn't know what was wrong down there, that there was something different about him. How could he when no one cared to teach him proper sexual education. Clean enough now, he dried off and put on some new clothes, placing the small towel in his boxers to keep from bleeding everywhere. Walking out, he was greeted by Sully who gave him a cup of water and some ibuprofen.

"The doc will be here in ten minutes, until then why don't you just rest." Nodding, Nathan took the pills with his water and walked over to his bed which had been cleaned up. Room service must have dropped by. Nathan lay down on the bed, hugging a pillow to his stomach. The ibuprofen was beginning to kick in, but not soon enough. A knock on the door signaled the arrival of the doctor. Sully opened the door to a middle aged woman, blonde hair tied back in a messy bun.

"Hello, I am Dr. Beauxregard."

"Victor Sullivan." They shook hands, the doctor entering the hotel room. Placing her medical bag on the small tabel, she took notice of Nathan.

"Ah, you must be Nate. Is the pain still at a seven?" She asked in a sweet tone. Normally Nate would have being talked to in such a way, but right now he found it comforting.

"No, it's gone down to almost a five."

"Well that's good. When did the pain start?"

"Um, late yesterday. It lasted pretty much all night." She nodded, standing up to begin her check up. Sully stood out of the way, but never left Nathan.

"Would you mind sitting up for me, please?" Nodding, Nathan set the pillow aside and sat up, letting his legs dangle off the edge of the bed. She checked his temperature, blood pressure, the usual in a check up.

"Everything seems normal. Now, I want you to lay on you back for me. Take off your pants and boxers please."

Nathan looked to Sully for comfort.

"It's okay kid. Do as the doctor says." Nathan sighed, taking his clothing off, save for his shirt. He still held the towel there as he lay on his back, closing his eyes.

"Good, now I'm going to remove the towel to inspect the bleeding." Nodding his head, Nathan bit his lip as she removed the towel from between his legs. Eyes still closed, he felt her gently spread his legs further apart, placing his feet on the edge of the bed. He heard the snap of rubber gloves and couldn't hold back the gasp when he felt her hands touch him.

"Interesting… Nathan, were you aware you're intersex?"

"Inter-what?"

"Hmm, I'll take that as a no then. Intersex is a condition in which a person is born with reproductive organs that don't classify as male or female. Cases of intersex tend to vary with some having more male dominant reproductive organs or more dominant female. Other cases have equal parts. In your case, you seem to be nearly equal but lack visible testicals."

This was terrifying to Nathan, who was never even properly taught, but he knew you could only have one set, so how come he had both? Opening his eyes, he stared at the ceiling.

"So that means… what?"

"Well," she said as she examined him. "If you feel here, this is part of your female reproductive organ. The penis and labia are more separated here, and underneath the penis is a small clitoris. I would have to run some tests to see if you are fertile for either or neither organ." Nathan began to drown her out now as she spoke with Sully. What was he? A woman or a man? He thought he was a man, I mean he called himself he! Oh God, what would Sam think! His brother was out working on a job, he didn't know!

Dr. Beauxregard took her samples and told them that the results would come in tomorrow. She stayed to help teach Nathan more about sexual education since he was so lacking, and told him everything he would need to know for menstruation. Ha, menstruation. He was menstruating, having a period, bleeding from a vagina he wasn't supposed to have! Leaving him some tampons and a few pads, she advised Sully that he talk to Nate about all of this before leaving to conduct her tests. Nate sat on the bed, wearing clothes again and now sporting a freaking pad. He didn't say anything as Sully sat down next you him.

"What's going through that head of yours?" He inquired. Looking up at the man who took him in, something inside of him broke. It was like a dam had been destroyed and the tears he shed were the aftermath. He didn't know why he was crying to be honest, but he just felt like crying.

"Oh kid, come here." Sully pulled Nathan in for a hug, letting him cry into his shoulder. He didn't mind his shirt was wet now, he just needed to be there for Nathan as he took in the news that everything he knew about himself was wrong. Sully could only imagine what lay ahead for the poor kid.