Dean and D both reached for the last slice of pizza, their hands bumping together, and they frowned at each other across the table. "Come on!" argued Dean. "You had two pieces before I even got here."
"Yeah, but I paid for it!" said D.
Dean frowned. "Didn't you ever learn to share back in kindergarten?"
"No," D admitted without hesitation, "but I became a damn good shot. It's amazing how much damage you can do with a water pistol." She chuckled.
Dean continued to frown.
D slid the pizza box across the table at him. "Here, enjoy your precious pizza, bitch."
Dean was appalled. "I'm not the bitch. You're the bitch." He took a bite and said, through a mouthful of pepperoni and sausage, "So you knew Castiel?"
D smiled and took a swig of her beer. "Yep, very well," she said, clicking her tongue.
Dean stared at her in shock.
"What?" D said. "He's hot! And he's good at it."
Dean swallowed the bite he'd already taken, tossed the rest back in the pizza box, and tossed the box on D's bed. "Well, that's more than I ever wanted to know about Cas." He gave her a suspicious look. "Wait a minute, he was a virgin when I met him."
"Me, too," D said, "but I took care of that." She grinned smugly, crossed her legs and tossed her hair seductively.
"This is impossible!" exclaimed Dean. He stood up and started pacing the room. He seemed to be doing that a lot lately. "You're telling me that all my life has never happened to me, but it's all happened to you- with some variations.
What the hell kind of creature are you?"
D was boiling almost as hot as Dean. "What the hell are you?"
"I'm telling the truth! Maybe you're just screwing with Sammy and my heads, like the-"
"Like the what?" D said. "Like the Trickster? He's dead! And I'd have to be an angel to do what you're suggesting!"
Dean laughed. "You could be. I'd call you a dick, but since you're a woman, I guess I'll have to settle with 'bitch'."
D shook her finger in his face. "You call me that one more time, and I swear-"
There was a soft knock at the door. "Come in!" they both hollered.
Sam opened the door for Samantha as she carried in a pie in a plastic pie plate. "Am I interrupting anything?" she asked.
"No," Dean and D both snapped.
Samantha winced and set the pie on the table whiled Sam closed the door. "We picked up dessert for you guys. Dean, I hope you like banana cream. It's D's favorite."
"It's pie, isn't it?" he asked.
"Then I love it," Dean assured her, sitting at the table and opening the pie.
Samantha smiled and shook her head good-naturedly. When she looked up at Sam, he was doing the same.
D dove into her stash of paper plates and plastic spoons. "You guys want some"
Samantha sat on the edge of D's bed, shaking her head. Sam folded his arms and leaned against the wall. "No, thanks."
D stood on the table opposite Dean and scooped herself out a piece, leaving a plate and spoon on the table for Dean. Then she took her own piece of pie and sat on her bed to eat it, avoiding looking at Dean.
Sam and Samantha exchanged looks, not sure whether to be worried or amused. Sam began, "So, we think we might know what's going on."
Dean looked up at him quickly. "What is it? Whatever it is, let's get it taken care of, quickly." He sent an icy look towards D.
Sam looked back and forth between Dean and D. "I think maybe we're two different versions of the same people, from two different parallel worlds- ours, and yours."
D grinned and said, "Yeah, I thought so."
Dean looked ready to punch her.
Sam continued, "It's the only thing that seems to make sense, seeing as how we share the same history, background, mannerisms, speech patterns, everything. We're two versions of the same people."
Dean was shaking his head. "This is freaking nonsense, man."
Samantha put in, "We even looked through Dad's journal-"
"Both of them," Sam clarified.
"No mention anywhere of anything like this," Samantha concluded.
Dean was completely baffled. "So let me get this straight: Sam and I are in another world, where we don't exist but you do, but you're us as girls, and- I need an aspirin."
D took a bottle of ibuprofen out of her purse, took a couple of pills herself, and tossed the bottle to Dean. She looked up at Sam. "Okay, so let's say all this sci-fi crap is true? How'd you get from your world to this one?"
Sam shrugged. "Came through some kind of portal, or gateway."
D rolled her eyes and leaned forward, laying her forehead in her hands, her elbows resting on her knees. "You're right, Dean, this is friggin' nonsense."
Dean commented, "Kinda like that movie where Will Ferrel and the hot chick fell into that other world with the dinosaurs and the aliens made of lights. What was it called?"
"Land of the Lost?" D said.
Dean grinned and snapped his fingers. "That's it! With the, uh... Sleestak."
D scowled at him. "You're comparing me to a creepy-ass, bug-eyed, lizard man?"
Dean rolled his eyes. "God... no!"
Sam cut off their new argument by saying, "It's the same principle, though. There's a door that opens between two worlds, people go through and get lost forever."
Dean asked skeptically, "So where was this door?"
Sam looked thoughtful. "I don't know, but we must've driven through, cuz the Impala came with us."
D picked up her empty plate and spoon as well as Dean's and dumped them all in the trash by the table. "Well, why you two are figuring it out, Sammy and I have a job to do. My Sammy, that is."
Samantha took her sister aside for a moment. "D," she whispered, "I think maybe they should come with us. It doesn't seem right to leave 'em out. They're hunters, too."
D looked as though Samantha had just asked her to clean the windows with her tongue. "You are sweet on the Goliath, aren't you?"
Samantha rolled her eyes. "D, we always need an extra pair of hands, on any hunt."
D pointed at Sam and Dean angrily. "Not that pair. I mean, they claim to be from a parallel world? What the hell? And you're supporting them!"
"D..." Samantha said insistently, giving her a pleading, puppy-eyed look.
D dropped her gaze, trying not to look, but Samantha persisted. D huffed, "Oh, all right!" She turned to Sam and Dean. "You're coming with us, as accessories." She snatched up her purse, glaring at Dean. On the way out the door, she snarled, "Don't get in my way."
Dean looked up at Sam and pointed towards the door. "I'm not going with her. She's dangerous."
Sam dragged Dean out of his chair, grunting, "Come on!"
Samantha picked up her purse and followed them out the door, locking it behind her.