As I mentioned before, although I am not keeping Mudbriar and Maud together in my NG, they still ended up being together long enough to produce two babies. Introducing the MudPie twins: Ametrine Twiggy Pie and Quercus Boulder Quartz.
(Yes, before anyone asks, their middle names are named after Mudbriar and Maud's pets. They are namesakes.)
These two are Emery Rose's big brother and sister. They aren't around much because they are often wandering around the Everfree Forest looking for items to add to their collections. Ametine likes collecting gems and geodes found in the caves and caverns connecting Ponyville and Quercus likes collecting twigs and sprigs from every plant or tree in the forest. They come home at night at the same time everyday, and Maud never has to go looking for them no matter how far they wander off.
Although in my next gen, Maud is currently married to Svengallop; they don't share a bitter relationship towards Mudbriar.. At least Maud still likes having him around to keep her company. Svengallop can't stand him, of course, but he deals with him because it makes Maud happy to still have him in their children's lives.
As for Emery's relationship with her siblings, she gets along with them just fine. In fact, it was one of Ametrine's gems that Emery first carved and earned her cutie mark from. Without her sister, she wouldn't have discovered her talent.. So Emery and Ametrine have a slightly tighter bond than with her and Quercus.
I'm actually pretty proud of how Ametrine's cutie mark came out; it only took about a minute to draw but the outcome looks nice still ^ ^ (It's a slice of a tree trunk with a geode inside; Inspired by a piece of petrified wood and Limestone's metaphor from the show)
I'll make their bios next chance I get; I'm just glad I was able to draw something again.