A REAL FULL POST FROM ME, IM ALIVE!! I am actually so happy to post this I love my silly little pony universe so much!!
I'm going through and updating all my super outdated next gen stuff!! Plus i prefer having everything in these bigger full family/themed posts rather than a bunch of individuals! This retcons quite a bit of my old lore surrounding this group, so I hope you like reading!

After the sisterhooves social episode, Big mac started to quickly realize that orchard blossom was a lot more than just a fun one time persona. Less than a month later she came out to her younger sisters as trans and was accepted with overjoyed and open arms! She officially changed her name but still goes by Big Mac as a nickname since she finds it to be moreso a term of endearment from her family rather than a deadname. She is much more talkative and participates in the social with both of her sisters yearly now! Her friendship with cheerilee had been long standing and after coming out they started spending even more time together as cheerilee's younger sister Jasmine Leaf was also a trans woman, it gave blossom a space to speak to someone she felt truly understood her. Troubleshoes and Sugarbelle came to ponyville around the same time, sugarbelle to work at sugarcube corner for confectionaries and clyde for his traveling roadside show. Sugarbelle and Mac had met before, not unlike their canon show counterparts, but the whole incident with featherbangs never happened. A friendship sparked between them and not too long after sugarbelle, cheerilee, and orchard blossom were inseparable. On one of their days out they stumbled across Clyde about to leave town and move onto the next, asking him if they could see his show before he left, to which he obliged. All 4 ponies genuinely enjoyed themselves and after finding out that clyde was essentially homeless, Blossom offered him to stay at sweet apple acres for a while to rest up outside of the small caravan he pulled (that he couldn't even fit into). What was supposed to be a week turned into a month as all 4 became thick as thieves, n eventually decided to be in a platonic polycule! They all wanted kids but never really had interest in romantic relationships, so they decided on each other and to raise their family as friends. Sugarplum came first, with carolina not too far after. Cortland was the youngest n is planned to be the last of the family's kids. All of the kids understand their parent's relationship n the entire family couldn't be happier.

Name: Carolina Cherry
Nicknames: Carrie (most common), Sunshine (Blossom)
Parents: Orchard blossom and Troubleshoes Clyde
Siblings: Summer Sugarplum, Cortland
Body type: big and s t u r d y girlie
Species: Earth pony-shire horse
Special Talent: Soul Music Singer
Voice Claim: Jurnee Smollett-Bell

Carolina was the second kid to be born to her family, even if it was only by a year. She was a huge baby and by the time Orchard Blossom was 6 months pregnant she could barely stand! From birth her parents could tell she was going to be a very big pony n boy was that an understatement, by the time she was in elementary school she was about the size of a full grown mare give or take a couple inches. In her adulthood she's about the same height as her pa clyde, though she insists she's 3 millimeters taller (she may be!). Despite her threateningly large stature, Carolina is the definition of a gentle giant. She spends a good majority of her time volunteering for events like the grand galloping gala and the summer sun festival, putting on free shows in ponyville, and giving free lessons to any foals who are interested! Carrie is an extremely talented singer and is well known throughout equestria! She often gets personally invited by the princesses to attend special events as the entertainment alongside huge names like songbird serenade, they insist on paying her but she refuses every time. With a voice on vinyl you'd expect Carrie to live in the spotlight, when she's quite the opposite; She much prefers to stay on the farm and work with her family, tending to her one, giant cherry tree that is a beautiful sight to behold come springtime. She planted it as a filly and, being an earth pony, it grew incredibly fast under her care. Everypony in ponyville eagerly awaits the harvest in which Carolina makes the most delicious cherry Jam that can be found in Equestria! Carrie's best friend since fillyhood is Tender Morning, after her visit to sweet apple acres (see- Destiny is but a suggestion) the two quickly bonded over a love of music and all things glittery! They have a few duet songs on vinyl in which morning sings under her pseudonym "thunderbird". Morning doesn't want anypony knowing she's the other voice to the duet, and the name helps as it causes ponies to assume that thunderbird is a Pegasus. Carolina happily keeps her best friend's secret and whenever asked she cheekily says, "I wish I knew!"
She's very close to her sibling Summer Sugarplum. Most ponies assume they're the younger sibling due to the height difference, and Carrie is quick to correct them. Summer defended Carolina often in their schoolfoal days, she was often bullied for her height once other foals realized she wouldn't fight back. Ponies quickly realized that despite being shorter than average, Summer was a force to be reckoned with and got suspended on multiple occasions for physically fighting others for bullying their sister. Despite the drastic difference in size Carolina and Summer still wrestle over who will do the dishes that day.

Name: Summer Sugarplum
Nicknames:Summer, Sugar, tiny (Tshoes)
Parents: Cheerilee and Sugar belle
Body type: Short mare with an average build
Species: earth pony
Special talent: Flower Baker
Voice claim: Maggie Heath

Summer Sugarplum was the first born to their parents even if it wasn't by much. Cheerilee and Sugar belle offered to have the first baby as they were less likely to have complications throughout the pregnancy. After spending a few months pregnant Sugar belle popped out Summer! They were a preemie baby and scared their parents a little with how small they were, but the doctors assured the parents that their filly was just fine. Sugar was quite the firecracker in her young years, much to the surprise of her parents. She'd always been exceptionally calm but the moment ponies started picking on their younger sister it was like they were a completely different pony. Upon graduating Elementary however, Their docile and friendly nature returned. They came out as nonbinary somewhere around age 12 and is happy with both she and they pronouns. They love their family to bits and are planned to be the next in line to take over sweet apple acres after applejack once honeybee made it very clear she wasn't interested. Summer is a flower baker, finding ways to incorporate normal and exotic flowers into their pastries and coming up with original recipes that have won them multiple awards. She's close with pinkie's family for this reason and considered them to be a second family of sorts, being overjoyed when her younger brother and pinkie's son poprocks were born on the same day. They always go out of their way to check on family members and even makes it a point to attend as many of whiplash's shows as she can despite being an earth pony. Summer was actually the first pony that Honeybee Harvest confided in about her feelings regarding herself and her family, which is why they offered to take up being sweet apple acre's future matriarch instead. Honeybee is extremely grateful and Sugarplum is the only one of her cousins she is particularly close with.

Name: Cortland Apple
Nicknames: Cory, Quinn, Lil mac (general apple fam)
Parents: Sugarbelle, Cheerilee, Orchard Blossom, and troubleshoes
body type: Just a little guy
species: earth pony
special talent: ???

Cortland is the last of the group's kids, and sequentially the biological kid of all four! Through some trial and error, and help from twilight, the family managed to combine all 4 of their dna into one foal (which cheerilee happily carried). Then came Cortland "lil mac" apple! Cory is adored by everyone he meets with his sweet and eager to please personality, many members of the apple family remark that he's a lot like his late grandpa bright mac. He's only a foal and doesn't have his cutie mark yet, which doesnt bug him one bit! He and his best friend Pop rocks, who he happens to share a birthday with, plan on finding out what their cutie marks are together, whenever it may happen! Cortland is often mistaken for a filly due to his long hair n bright eyes but he doesn't much mind it. He loves interacting with every member of his family in every way he can, helping sugarbelle at the bakery, cleaning up cheerilee's classroom, helping Blossom in the orchard, Attending his big sister's shows, the world is Cortland's oyster and he is determined to crack it open!!

BOOM POW!! MORE PONIES!! I hope y'all are as happy about this post as I am because holy geez, I have a LOT of stuff to rewrite but thats okay!! I'm excited to do it!!