I wanted to add to (one of) my head canons (this one goes along with the Pinkie Pie Headcanon post I made). This will be about the mane six, as well as some other characters.
Okay! In this AU (I might turn it into an actual story but I'm not sure. Definitely gonna do drawings based on it)
Pinkie Pie, Fluttershy, and Rainbow Dash are a herd (closed? polyamorous triad) and all three of them are transstallions(All of their names will remain the same as I don't feel like they are necessarily feminine or masculine).
Rainbow(I will also refer to him as Dashie or Dash) is the most masculine of the three, Pinkie is kind of in the middle, being kind of masc sometimes, femme sometimes, and sometimes a combo of the two, and Flutters is usually rather feminine.
Rainbow Dash is gay(questioning, but gay is what he has come up with for now, you will see later on), Pinkie is Pan, and Flutters is Bi, they are also all on the Ace spectrum.
Rainbow is the tallest of the three, Flutters is the shortest, and Pinkie is a bit taller than Flutters. Both Pinkie and Flutters are chubby, Pinkie being a bit chubbier than Flutters(Pinkie loves food and is not ashamed to admit it), while Dashie is rather slim and muscular(he also loves to eat but he has a very high matabolism). Pinkie has the shortest mane of the three, and Fluttershy has the longest.
As stated in my Pinkie headcanon, He is autistic(and adhd), as is Fluttershy. Fluttershy also has Social Anxiety Disorder and Generalized Anxiety disorder. Dashie is Diagnosed with ADHD and dyslexia (which is part of why he didn't read much before that time he was in the hospital), and it is thought that he is also autistic, but he has not yet been diagnosed.
Fluttershy's favorite stims are stimming with music(this varies and he usually prefers to have music anyway), various body stims, colorful lights (when they aren't too much for him), soft textures, swings, he likes soft movements and calm things, he also tends to flap (wings and hooves) when he's greatly excited about something and can also get loud at these times (like when he saw spike the first time). Fluttershy loves tight hugs when he gets overwhelmed, they help him calm down immensely. Fluttershys skin is very sensitive(even more sensitive when he's overstimmed), so he is picky about clothing (when he wears it. His coat helps prevent some irritation). Some of his special interests are animals, animal care, and fashion. Rainbow on the other hoof prefers to move fast and is usually constantly moving in some way, flying is one of his favorite stims. When Rainbow gets overwhelmed(which doesn't happen very often) he is very sensitive to touch and lights, so it's best for him to be in a familiar place with dim lights (like certain places in his cloud home or Flutter's cottage).
All three of them wear clothing from time to time, when they do Dashie prefers scene, emo, and comfy styles of clothing, Pinkie also likes scene and other colorful styles of clothing as well as some pastel styles (like fairy kei), Flutters prefers pastels and comfy is his default (he loves loose flowy things, and adores dresses and skirts).
When the three aren't working at their respective jobs or spending time with their friends, they are spending time together (usually at flutter's cottage as it is the easiest to get too(compared to Rainbow's) and the quietest (compared to the Cake's).
Also, I put closed with a question mark after the bt about them being a herd, because they are considering adding Twilight to their herd. Twilight is questioning their gender so they use they pronouns for now. They are intersex(which is part of the reason they use the pronouns they do) as well as autistic. (Note, Flutters is intersex as well and Pinkie and Dashie have both physically transitioned). Twiley is bi.The herd all loves spending time with Twiley.
Twiley special interests include magic, books, an learning.
Pinkie and Dashie are the most outgoing of the four, with Flutters being the most shy, Twiley having the hardest time understanding other ponies. Twilight is in between Rainbow and Rarity height wise.
Next are Applejack and Rarity.
Rarity is a Trans mare. Applejack is a stallion (born that way but they thought he was a filly until he hit puberty and developed properly, but he knew from when he was younger what he was). Rarity had supportive parents and transitioned early on, first with growing out her mane and changing her name and pronouns, then physically(through magic) transitoning to the way she wanted to look. She is one of the tallest of the mane six. Apple jack is the tallest. Applejack is also the strongest, thought the others are strong in their own ways. Rarity and Applejack are both bi. Rarity is diagnosed with ocd and autism. Her main special interest is fashion. Applejack isn't diagnosed with anything but the mane six isn't so sure he's nurotypical. They do know he's stubborn as a mule and can be rather resistant to change as well as quite possibly have dyslexia and discalculara(he's always had problems with reading and math but he hasn't let that stop him.)
Applebloom is afab (assigned filly at birth) genderfluid(trying he/him and they/them at the moment) and pan , Sweetie is acab (assigned colt at birth) questioning (currently trying out she/her) and pretty sure she is bi, and Scoots is a pan trans boy. They are trying out being a herd together(but if that doesn't work they will still be friends). Scoots can't fly well (still aren't sure why), Sweetie has difficulty walking sometimes(and needs help from the others when this happens), and Applebloom has attempted to get sweetie to use a walker that he/they built for her when she has trouble but she fears it will make her look weak. Scoots is adhd, and sweetie is autistic and has hearing processing difficulties, Applebloom has a lot of the same problems his/their brother Applejack does. Applebloom and Scoots are the same height, and Sweetie is a bit taller than them.
Babs is afab questioning(thinks they may be a trans colt or maybe a demicolt but they aren't sure, uses they for now) and is pan. Babs has hearing problems because when they were born they had ear infections in both ears and has scar tissue from those infections as well as others. They don't have a massive amount of problems because of it, but they can't hear as well as other ponies their age and it's worse on the right side so it's best to be on their left side and have them facing you when talking to them. Babs also only has three legs, being born without their front right leg. The CMC and the Mane six are understanding and do their best to help Babs in any way they can. Babs has a very advanced magical prosthetic that helps immensely and a hearing aid for the ear that has more damage.
Spike is a nonbinary transgirl and questioning her sexuality (and if she is ace or not).She is pretty sure she is panromantic.
TenderTaps is a cis gay colt.
Some family of the mane six now.
Big Mac a cis stallion, Pansexual.
Shining Armor is intersex and acab(like Twiley) and she realized early on that she was both but identified more as a girl and wanted to use feminine pronouns. Cadence is a transstallion who only realised it a little while ago. Flurryheart(taking after her parents not only with her wings and horn but is also intersex like her mother) is still young and they are waiting until she gets old enough and she can decide for herself what she is. They use she/her pronouns for her as she was assigned filly at birth.
I think that's enough for now. Note I haven't seen the newest seasons and I may or may not change things in this headcanon (due to the show and personal preference ) in accordance with this. I will probably also add more as I come up with it.
