Birthdays:
(Note: in my mind the trix are sisters, but not triplets. I'm sorry there is no way Stormy and Icy are the same age)
Icy: December 13th - Idk she just definitely has a December birthday and 13 felt right. She was not born on a Friday the 13th, but she lies and says she was. No one is going back and doing the math anyway
Darcy: October 4th - She definitely felt like an October Libra to me, so here we are. No reason for the 4, I just felt like it should be an even number for her. she is born ten months after Icy and for the short time they have the same age they have a lot of tension between them
Stormy: May 5th - Despite being my favorite trix (and winx character) and the one I have the most headcanons for I have very few opinions on when Stormy's birthday should be. May 5th is the date listed for all of them in the wiki and the date just felt so wrong for Icy and Darcy so she got to keep it. She is about 19 months younger than Darcy if I am doing the math right. (Because she is clearly the youngest and I will fight anyone on this)
Greatest fears (or one of them)
Icy: Her greatest fear is loss of power. She can deal with failure and rejection (she is used to it by now), but she would not be able to cope with loss of power. Not only her magic powers, but the power she has over others. She needs her sisters to be looking up to her. She needs to be the leader.
Darcy: Darcy would be most scared of loss of control. Darcy is a strategist and plans everything out beforehand. She is very conscious of everything she does and not having control would be stressful and demeaning for her
Stormy: Stormy would be most scared of getting left behind. She is scared of her sisters abandoning her because they see her as stupid and impulsive. She is scared to do things by herself and figure out how to live independently. She has major FOMO
Real names/ how they got their nicknames
Icy: Her real name is Icobel, pronounced Isobel (her mother was quirky) She essentially one day at around 13 or something was like "I am going to go as Icy now" and everyone around her was like "yeah sure whatever"
Darcy: Her real name was Darcella, and it was shortened to Darcy pretty immediately. She never really went by her real name
Stormy: Her real name is Beatrix, just because I think it is really funny. The only good thing about Fate was that it proved what some of us already knew: the trix are the best part of winx club. As a child she was nicknamed Stormy whenever she was angry as a joke, but over time it just sort of became her name.
(Can I even call these headcanons anymore? At this point it basically is it's own AU)
Favorite colors
Icy: A soft pastel blue. Her civilian outfit was light blue and I always associated her with light blue, even though her witch form is darker. This is the closest I could find
Darcy: This purple. It had to be purple and this one wasn't do dark or too bright. Her favorite wouldn't be light purple
Stormy: A medium hot pink. Some people see her outfits as red, but I don't. I didn't want to do a dark color like her outfits, because I don't think her outfits represent who she is the way Icy's and Darcy's do. I wanted her favorite color to be a pink that wasn't too fairy-like, but also something she may not be comfortable wearing around cloud tower. I wanted to find pink that didn't seem to bright or neon, and I was pretty happy with this one.
The trix do NOT share clothes with each other. For one, their styles are different enough that they don't really have any desire to. They actually respect each others belongings and don't go through each others things. They do really trust each other. If they did want to borrow something they would ask the other sister first and let them be the one to grab it. They may be evil and competitive, but they respect each other's space (side eye to my sister)
As a kid I only had seasons 1 and 2 of the cinelume dub on netflix as I kid. I low key didn't know they made any other seasons until years. I grew up thinking they were sisters and didn't consider any other interpretation.
I watched the show with my younger sister and we both loved the trix. Sister relationships are special and evil sister relationships were better. Yes we are evil, but we also do sort of love each other maybe 40% of the time and care about each other about 80% of the time.
My sister was/is very similar to Stormy in personality and I would probably be more similar to Icy. Because of this the Icy and Stormy sister relationship has been my favorite to think and write about.
I just personally like reading and writing about sister relationships. I am totally willing to ignore evidence in favor of my happiness in cases such as this.
Even when considering an interpretation where they are not sisters, I still would want them to be related, like third or fourth cousins. I always thought it was interesting if fairies prioritized friends while witches prioritized family. I don't have a reason, I just like it
So anyway, yes, fuck the willow tree. I am going to choose to believe that was a translation error and live happily in my delusion forever
Icy, Darcy, and Stormy's mother has the same eyes as Bloom. Just for angst.
My explanation/ headcanon of Stormy wears skirts much more often than Icy and Darcy (and the winx actually) in the seasons that count anyway
I always liked to imagine that both Icy and Darcy are just completely gorgeous. Meanwhile Stormy is more average. As the trix got older she started feeling self conscious about her looks and started wearing more skirts to try to appear more feminine and more beautiful. It didn't really matter to anyone but her, but it made her feel better even if it didn't really make her happy.
As opposed to Icy and Darcy who are very comfortable in their pastel preppy and dark hippie styles, Stormy never really got a chance to discover her style and her clothes more reflect wanting to fit in vs. reflecting who she is
Of course due to evil shenanigans the trix end up wearing potato sacks forever
Which winx girl each of them is most jealous of
Icy: Aisha or Stella: has always wanted to be royalty, hence why she makes Knut refers to the Trix as highnesses. She's more jealous of all royals getting power, status, and nice things without having to work for it. I did not include Bloom because let's face it: Icy would rather die than live without magic
Darcy: Musa: Yes, because of Riven. She would lie and say she is most jealous of Stella if asked.
Stormy: Bloom: Bloom is the beloved leader of the Winx and Stormy is very much the punching bag of the Trix. She would kill for people to treat her like they treat Bloom
Scents
This is what scent the trix would be, not their favorite. That is a different post. This one is more unhinged
Icy: One of those candles that says it smells like a beach, but doesn't actually smell like a beach. She would be the smell of imitation beach
Darcy: A candle that is supposed to smell nice, but when you sniff it, it just smells like wax and you get sad. Like you can get a little bit of the intended scent scent, but it is overpowered by the scent of wax. Not that I think Darcy smells like wax, but she is deceptive enough to be this candle
Stormy: The smell of a Bath and Bodyworks store, when you walk in and realize that you can in fact be overstimulated by smell. It's chaotic enough to be Stormy
You forgot this one
And more wholesome