A/N: Yes, another Supernatural story. Do you guys hate me yet? I promise I'm still planning on finishing my other stories, but I had to write this. Some of you can already tell, but for those who can't, this is loosely based on the movie One Fine Day with George Clooney and Michelle Pfeiffer. I loved that movie, and I thought I could do a spinoff with Dean and Castiel. Let me know if I was successful.

And for those of you who haven't seen the movie, I'm just stealing some scenes and moments from the movie, but most of this story is my own creation.

Don't forget, if you guys review this chapter, you'll be put on the wall of fame for the next chapter.

As always, I do not share any views expressed by any characters in this story. And I own nothing in this story.

Please read, review, and enjoy.

"No, Meg, we already discussed this," Dean Winchester grumbled as he put a blue coat on his five year old son, Sam. "I can't have any scheduling's today. I have to do my business with Lisa, and then I'm spending the day with Sam." He zipped up Sam's coat, then stood, looking around for his keys. During this time, Sam ran back into his bedroom. "Why? Because with all this divorce shit, it's been too long since I spent some quality time with him," Dean replied in a more hushed tone, so Sammy wouldn't hear.

"Are you sure you aren't just scared that you're going to lose custody of him?" Meg asked from the other end.

"Of course not! Lisa had no problem agreeing to shared custody; I'm not scared of that at all. I have no reason to be." He grabbed his keys and held the phone away from his face, calling out, "Sammy, let's go!"

Sam came running out of his room, clutching his favorite stuffed triceratops, Dinoroar. "Ready," he said, smiling up at his father.

Dean frowned at him, then mumbled into the phone, "We'll talk more later. And please give my apologies to the Wyatt family, but please make it clear that it is your fault, seeing as you didn't call them to inform them that I wouldn't be able to do a shoot with them today." He closed his phone, then crouched down, eyeing the stuffed animal in Sam's arms. "Sammy, do you really have to bring Dinoroar today? We're going to be running around a lot, and I don't want you to leave him somewhere like last time."

"I promise I'll be careful," Sam reassured him with big eyes. "Please let me bring him. He's been really lonely lately, and I think some fun would be good for him."

Dean couldn't help but smile at that, and nodded. "Okay, Sammy, you can bring him. I promise, after I go and talk to Mommy about a couple of things, we're going to spend the day doing anything you and Dinoroar want, okay?"

Today, Dean was going to see his wife of nine years, Lisa, so that he could get her to sign their divorce papers. The day already wasn't going well, as his assistant Meg had called to tell him that he was late for his photo shoot of the Wyatt family portrait. Dean had clearly informed her the night before to cancel all of his appointments, because he would be getting his divorce papers signed and then spending the day with his son. It didn't help that he was starting to feel depressed about getting divorced at 34, knowing that his chances of meeting someone and getting married again in time to have more kids before he turned 40 weren't too great.

He had lied before, about not being nervous about the divorce. Though Lisa had seemed perfectly okay with sharing custody of Sam, his lawyer had told him that, in some cases, the wife would change their mind just before the hearing. They would tenaciously seek out sole custody, having decided that their future ex-husband was less than worthy of seeing their own child from time to time.

Now, he was in a hurry to get the papers signed, and for the hearing to take place, before she could turn a new leaf. So on that day, the plan was to drop by her work and just take a moment of her time to get the papers signed. He had called the night before to make sure that she would keep her ass planted at her desk long enough to get this little task over with. Since she was a journalist, she had a tendency to just get up and run and follow the scent of a new story.

Dean only needed five minutes.

"Mommy?"

Castiel Novak, 29-year-old, aspiring male writer, looked down at his five year old son as he fixed a peanut butter and strawberry jelly sandwich. "Yes, Gabriel, was is it dear?"

"What all are we going to do today?" Gabriel's eyes were alight with anticipation. Before Castiel could answer, he was bouncing, saying, "I wanna go to the park, and to the zoo, and I want a sundae, and I wanna go fishing, and let's go to a baseball game. Huh, can we Mommy, can we?"

Castiel just laughed, petting back Gabriel's too-long hair. "Sweetie, you know we can't do all of that in one day. Besides, if we do all that fun stuff today, what would we do tomorrow?" When Gabriel pouted, Castiel sighed, putting a pause on crafting the perfect PB&J, and knelt down to let Gabriel sit on his knee. "Gabe, do you remember what we talked about last night? About how important this day is to Mommy?"

Gabriel nodded. "It's going to be the start of a better life for both of us."

With a smile, Castiel nodded. "That's right. Now, I know that you secretly have the heart of a spider monkey." He paused to tickle Gabe, who giggled, went limp, and almost fell off his knee. Castiel let out a happy sigh, and told him, "You just have to be on your best behavior for a few hours, okay? And then after Mommy has finished his business with the men in the suits, we're going to do lots of fun things together. Okay?"

"Promise?"

"I promise, sweetheart."

As Gabriel ran to pick out what clothes he wanted to wear, Castiel finished making the sandwich and put it with some other snacks he had for Gabe in a big man purse, which mostly resembled a diaper bag. Today was the day that Castiel would sit down with the men of McGraw Publishing to talk about his newest manuscript, in hopes of getting it turned into a book. His ex-husband Balthazar's child support wasn't doing enough anymore, so now seemed like the perfect time to make his dreams come true.

Castiel had been married to Balthazar for four years, and in their last year of marriage, they adopted Gabriel, fresh from the womb, one might say. Even though Balthazar wasn't making much money as a drummer for some band, and he wasn't even home that often, Castiel was happy. But once they had Gabriel, and Castiel had to do everything on his own, and Balthazar hardly ever came around to see his son, Castiel decided that he'd had enough.

They divorced four years ago, and Castiel had taken sole custody of Gabriel. He was a little shattered when Balthazar didn't even fight to keep either of them, and he just let Castiel have everything he wanted without dispute. It was as if they didn't mean anything to him anymore.

Castiel had done all sorts of jobs, really anything he could to make sure that Gabriel was taken care of. If this book got published, it could be the answer to his prayers. Except, he'd stopped praying a while ago.

He had to do this for Gabriel.

Castiel walked with his heavy bag slung on his left shoulder, a hand on the strap to secure it, while he carried Gabriel in his other arm, the boy wrapping his small legs around Castiel's torso. The only time he would let go of his bag strap was to hold up a hand for a second in an attempt to hail a taxi. He huffed when no one was stopping. How could none of them pity him in this situation?

Finally, a taxi stopped, and he sighed in relief, opening the door and putting Gabriel inside. "Oh, hey, god, can we share that with you?" Castiel heard someone say behind him. He turned to see a taller, gorgeous man with bright, green eyes, tanned skin, and freckles peppering his cheeks and the bridge of his nose, holding the hand of a small boy who looked very much like him. When Castiel simply nodded in return, the man smiled with perfect teeth, the skin around his eyes crinkling. "Okay, great, thanks man."

Castiel slid in, putting Gabriel in his lap, and then came in the man's son, followed by the man with the pretty eyes. "It's no problem," Castiel told him. Then he leaned forward, telling the cabbie, "I need to get to McGraw Publishing, please."

"And I need to get to that place where they write The Revere Gazette, thanks," the other man said to the driver. He smiled at Castiel. "Got your hands full, huh?"

Castiel sighed, nodding. "You have no idea. This one can be a real troublemaker." As they talked, Gabriel slid of Castiel's lap to be near this other man's boy. They began flicking and teasing each other, whispering things.

"I got lucky with Sammy. He tends to behave himself." The man looked down at his son, his eyebrows raised. "Hey, leave that boy alone," he said in a low voice, grabbing one of his son's hands.

"Dad, he started it," Sam said, looking up at his father with an agitated expression. "He always starts it. He always pinches me so that I'll punch him, and he'll cry and get me sent to the corner."

"You know each other?" Castiel asked Gabriel, who was squirming in his arms.

"He bullies me at the daycare. I don't like him," Gabe replied, pulling up a foot to kick Sam lightly.

"Hey!" Sam reached out, smacking Gabriel's leg away. "See! He's getting me in trouble again." Both the boys said in unison, "I don't wanna sit by him!"

The dads murmured things as they pulled their sons away from each other, putting them by the doors as they both scooted into the middle seat. Castiel turned, not realizing how close he was now to the handsome stranger until they were face to face. "Uh, I uh…" He swallowed, chuckling at himself. "I apologize for Gabriel."

Gabriel attempted to climb back into Castiel's lap, pouting. "Mommy, Sam is always mean to me. He beats me up and the other kids make fun of me."

Castiel looked down at his son, moving him back to the door. "Let the grownups talk, okay sweetheart?"

The other man raised an eyebrow, then couldn't contain his laughter. His son laughed with him, though he probably didn't know why they were laughing. When Castiel looked at him again, confused, the man asked, "Did that boy just call you Mommy?"

Castiel's nice face slowly turned into a face that wasn't very friendly, and actually looked kinda scary. "Is there a problem with that?" If this guy was going to be a homophobe, he would be forced to kick his ass in front of both of their sons.

As the other man wiped a hand across his eye, his laughter calming down, Castiel waited for his reply, which was, "No, it's just…now that horrendous bag makes sense." He rubbed the back of his neck. "Having to play Mommy for a day? Guess your wife is at work?" Castiel remained in a stunned silence, and the man added, "Nothing to be too embarrassed about, man. When I used to carry my wife's diaper bag around, Sam would call me Mommy too."

Castiel's anger deescalated, and he let out a deep breath, looking down at his son. "Actually, no. I divorced my husband a few years ago, so I am Gabriel's Mommy every day."

The other man's eyes widened a little, and he noticeably swallowed. "Oh, I'm…I'm sorry, I had no idea." They were quiet for a second, and he cleared his throat, inquiring, "Why didn't your husband let Gabriel call you Daddy?"

That was a surprise. "Uh, well we started doing that because we thought it might confuse Gabe to call both of us Daddy. I never really minded it. But Balthazar only stuck around a year after Gabe was born – hardly – so there was really no reason to ever do that. I just couldn't stop calling myself Mommy in front of him."

Suddenly an Oreo was thrown from Castiel's side of the car, and it hit Sam in the side of the head. Both dads looked at Gabe, who looked way too smug for a five-year-old. The nice, understanding look on the other man's face was gone, and he was holding his son in his arms. "Hey, will you get that kid of yours under control?"

Castiel scoffed. "My kid? What about your kid? He admitted that he hits my son at daycare. Don't you care about that?"

"Oh come on," the other man complained, rolling his eyes, "if it was really that bad, don't you think that the daycare people would've called us in or something? Or wouldn't you have noticed the bruises?"

Gabe threw another Oreo, and Castiel lifted him up so they were eyelevel. "I swear, mister, if you don't calm down, I'll put you in that daycare until my meeting is over; don't think I won't." His voice and expression weren't nearly as threatening as they'd been to the other man earlier.

"Oh, hey, that's a really good idea," the other man said. "Why don't you take Sammy, too? I've got some stuff I've gotta do."

Castiel looked taken aback. "Are you kidding? No way. And why would you entrust me with your child, anyway? We've only just met, and since then our sons have both declared their hatred for one another."

With a sigh, the other man said, "Because, right now I'm on my way to my wife's work to get her to sign these divorce papers," he pulled the corner of an envelope out of his jacket, just to show, before pushing it back in, "and I would rather Sammy didn't have to be around for that. And I'm desperate."

Suddenly, Castiel's faced drooped, and he could feel himself being overtaken by pity. After a moment of silence, he asked, "What's your name?"

"Dean Winchester."

Castiel wet his lips, reaching out a hand. "Castiel Novak. I guess I'll take your kid, if you trust me."

Dean grinned. "How can I trust you? I just met you." He still shook Castiel's hand.

Shaking his head, Castiel mumbled, "You're a real piece of work, Mr. Winchester." He leaned forward to tell the cabbie to take Dean to the newspaper place first, and to then take him to the Happy Smiles Academy daycare. When he looked back at Dean, he was being smiled at. This made Castiel feel a little embarrassed, and he decided to concentrate on his son.

Dean watched Castiel for a little while longer, taking in his tousled, dark hair and bright blue eyes. His suit was perfectly pressed, so Dean assumed he must be a businessman of some kind. Dean was in his most casual suit – light gray with a white button up, no tie – and a black trench coat. He looked a little bit closer at the other man and noticed that Castiel's suit – complete with jacket and vest – was actually really dark blue, not black like his tie, and he liked that. Castiel wasn't wearing a coat of any kind, and Dean wondered if he was cold.

Then, his phone rang, and Sam reached into his pocket, pulling it out for him. He smiled, taking the phone from him. "Thanks, Sammy." He answered with not the most polite voice. "Hey, Meg. Whatcha up to?"

"So am I canceling all of your appointments for today, or just the ones for the first half of the day? We both know you can't really afford a full day off work."

Dean was about to make a snarky reply, but then he glanced at Castiel, who still appeared too nervous to look his way, and decided to have some fun with the not-so-bad-looking stranger. "Oh, really? You miss me that bad already?"

"Don't screw around, Dean."

"Yeah?" He chuckled a little. "Well, we might just have to do something about that." As Meg remained confused on the other end, Dean noticed in his peripheral vision that Castiel shifted slightly. In the deepest, sexiest voice he could muster, he asked, his lips grazing the phone, "Are you wearing panties today?"

Castiel's head snapped in his direction.

"What the hell are you talking about? I thought you were past this shit. You know hooking up with me won't get rid of this frustration you have about the divorce."

Dean swallowed, doing his best to ignore that comment. "Oh yeah, what color are they?" It took all he had not to laugh when Castiel covered Gabriel's ears in horror. "Yeah, just let me get these papers signed, and then I'll swing by, baby."

"You're with a woman, aren't you?"

"Yeah, baby, but she's not near as pretty as you," Dean replied, turning to look at Castiel, putting an arm on the back of the seat, behind the smaller man. "Plus she's in a suit, and I'm not sure if that's a turn on or not."

Castiel scoffed, looking totally disgusted. "Excuse me, driver, can you stop here?" he asked, not looking away from Dean. When the car stopped, Castiel took Gabriel in his arms, getting out of the cab. Dean and Sam also came out, and Dean feigned surprise. Castiel shook his head, covering Gabriel's ears again as best he could with the boy trying to get away from him. "How dare you talk about things like that in front of my son? And don't you have any respect for your own child?"

Dean laughed. "Of course I do. That's why I don't keep secrets from him." He tugged on Sam's arm so he'd come out from hiding behind his leg. "Go with Gabriel and his Mommy, and I'll pick you up soon, okay?" Sam nodded, and Dean gave Castiel one last smile. "See you later, Masculine Mommy."

With that, he jogged away, and Castiel just stuttered, not able to get out his complaint in time. 'No wonder he's getting a divorce,' Castiel thought, 'there's another woman. And I'm helping him?'

When he was a safe distance away, Dean pulled out his phone, calling Meg back. "Sorry sweetheart, I was trying to get a reaction out of someone."

"She pretty?" Meg asked.

"Totally pretty." Dean chuckled.

"Was it the reaction you wanted?"

Dean laughed, thinking about the face Castiel had made. "Yeah. She hated me. It was adorable."

A/N: So what do you guys think of Masculine Mommy Cas?