Dean Winchester's daughter doesn't trust easily.
Dean could still picture her exactly at age seven as she was standing in front of Bobby's house. He and Sam had a hunt and this time they couldn't just let her chill in the hotel room. But they weren't sure they could leave her here either, since the girl who had just come to trust them a little was shaking in fear at the thought of another person she would have to warm up to.
"C'mon Luxie, it'll be alright." Sam was knelt down in front of her and talking to her in soft tones.
Dean however had a different approach. When she still kept backing away from Sam, he sighed and scooped the girl up in his arms and the set her on the hood of the Impala. "Look Luxa, you trust me and your Uncle Sammy, right?" Blonde ringlets bounced as she nodded. "Good. Now would I leave you with someone I don't trust?" Tiny shoulders just shrugged out a reply as her head dropped as to not meet his eyes.
"Nah doesn't work like that kid." He tilted her chin up and he held two fingers there so she wouldn't drop it again. "Luxa Marie, I will never let anyone hurt you, okay? You'll be fine here and Sammy and I will be back in a couple of days. You're gonna be okay. Now come on, race you!"
The three Winchesters bolted across the junkyard towards the door, both older men letting the younger girl win. And when the boys came back a few days later Luxa was just fine, took a few more visits but eventually Bobby became Grandpa.
Dean Winchester's daughter never leaves without saying 'I love you'.
It was ever since her dad had been sent to hell. She had told him countless times as she sat beside him while he was dying, but he never responded. She said she could never be sure if he heard her, if he truly knew that she loved him. Now whether it be to run up to the grocery store or to go out on a hunt Dean, Sam and Bobby find themselves with a girl wrapped around their waist hugging them to death while mumbling the three words. They all three accepted it, even though they weren't good at dealing with too much emotion. After she finished her goodbyes however she straightened up, gave her playful smirk, and bounced off.
Dean Winchester's daughter loves his Impala.
He really didn't know why he was doing this. Well, that's a lie. He knew. Luxa had pouted and pleaded and given him the puppy dog eyes. And now his hand shook a bit as he handed over the keys to his beloved Impala. She grasped them immediately and then jumped forward. "Thanks, dad! Thank you, thank you, thank you!"
"Just… take care of her." He thought he might have been experiencing real pain from this.
Luxa didn't even hear him. "Love you, dad. Bye!" She raced towards the black car and soon enough drove off. Damn kid, chill with the speed, he thought.
"It's just a drive, Dean. The car'll be fine." Sam gave him his half-bitch face, he for some reason thought he should be more concerned about Luxa than the vehicle.
Luxa returned a half hour later, her face as guilt as all hell. "Daddy, I'm really sorry but there's kinda, maybe a little scratch…"
Only Luxa.
Dean Winchester's daughter always goes to her Uncle Sammy with female issues.
It just kind of happened that way. Sure her dad was approachable, and for her he would have figured everything out, but he was Dean Winchester, and it just wasn't right. Then there was Grandpa John, which just wouldn't work since he would send her to Dean or give her a book. Grandpa Bobby would just blush and stutter then send her to Dean since she was 'his damn kid'. Sam though had lived with a girl and that qualified him enough in his twelve year old niece's eyes to come to him stuttering and confused and asking about periods. Sam had blushed like all hell, but he explained everything and didn't make her feel stupid or embarrassed about it. And it worked for them, especially after the initial embarrassment was over and she could begin to tentatively ask him about her girl issues and such. Dean made fun of him to no end about it and said she only went to him because he was so feminine, all the while calling him Samantha. In truth though Dean was a bit jealous, this was one thing Luxa never wanted his help with, but instead someone else's.