Okay so hold on to your seats because I have a lot to say about these ponies. First off, this was intended to be merely a Lil Cheese redesign as an adult, but as I was doing so, I thought to myself "there's no way Lil Cheese is an only child", and thus they were born, Lil Cheese's younger siblings, Honey Pie and Rocky-road.
Let's start with Lil Cheese, shall we?
Full name: Cheeserastic Chimi Cherry Changa, alias Lil' Cheese. Pronouns: he/him. He's the eldest of the cheese-pie siblings and as such, he takes care of them whenever his parents need him to. Contrary to common belief, his special talent has nothing to do with baking or eating pies! His special talent is comedy, depicted by a slice of pie representing that immortal joke of throwing pie at somepony's face... Though most of the times it's his own face the one he covers in pie. He lived the first few years of his life at Sugarcube Corner, but the family moved out once Honey Pie was born. Thanks to this, Lil Cheese is closer to the Cakes than his siblings. He inherited Cheese Sandwich's joke and gag factory and runs it along with his father.
Next up, Honey Pie. Pronouns: She/her. She was born when Lil was around five years old, and since, the Cheese-Pie family now lives in a house that looks like a circus tent just outside of Ponyville. Regardless, they visit Sugarcube Corner and the Pie rock farm as often as they can. Due to her appearance with muted colors and straight hair, she was the only one among her siblings to be granted the Pie surname. Her grandparents and aunts adore her. She has a more reserved personality than the rest of her family, and gets along with her aunt Maud best. When she was younger, her family's erratic behavior could be overwhelming for her, so she decided to spend a few months at the Rock Farm, where she earned her cutie-mark. It represents how sweet and helpful she is, as sweet as honey! She spends her days helping as much as she can, anywhere they let her.
Lastly, Rocky-road, the youngest sibling. Pronouns: they/them. Rocky was born, you guessed it, at the rock farm. Around the same time Honey decided to move there, her parents were visiting and Rocky was born a bit premature! Regardless of the complications, they were a very healthy baby pegasus. It was a shock at first, but upon further inspection of their family tree, it was discovered that Cloudy Quartz' mom was a pegasus as well. Rocky-road is a very mischievous pony, and there's nothing they love more than playing pranks on their older siblings. They are really fast and get along with Rainbow Dash best, having their love for pranks and flying in common. They got their cutie-mark while trying new recipes with Pinkie, at the time they discovered their special talent was to invent new ice-cream flavors... With a twist. Their mischievous nature motivated them to try and mix unmixable ingredients, like chili peppers and mint, or salty caramel and berries. Thus, Rocky-road spends their days experimenting with ice-cream, waiting for the day they can open their very own ice-cream shop.