Both Dipper (he/him) and Mabel (she/mew/sparkle) regress to about 2-5 years old
They actually didn't start regressing until their parents divorced and their Grunkles got full custody of them when they were fourteen
They almost never regress without the other, forever twins lol
Dipper regresses to cope with their parents treatment of him and their divorce, as well as wanting a childhood where he isn't forced to be a girl
Mabel regresses to cope their parents divorce as well as her fears of growing up and Dipper leaving mew
There's also definitely some lasting trauma from experiencing the apocalypse at age 12 that they both experience
Dipper likes playing in the woods, being read to and watching Stanford work while he tells him stories of the multiverse
Mabel likes looking for cute cryptids, coloring/arts and crafts and, helping Stanley make new attractions for the Mystery Shack
Stanley worries about the kids because he knows this is response to trauma but he absolutely adores taking care of them when their little, it reminds him of when they were that age the first time
Stanford feels like this might have been an all too generous blessing from the axolotl, letting him protect and care for his niblings that he never got to see before the age of 12
Dipper Pines is a straight trans boy and uses He/Him pronouns, demiplatonic and allofamilial, a toddler regressor, autistic and has GAD. His caregivers are Stan and Ford. He is in a trans for cis relationship with Pacifica.
Mabel Pines is a demigirl that uses neopronouns She/Mew/Sparkle/✨, panromantic asexual alloplatonic and allofamilial, a toddler regressor and AuDHD. Mews caregivers are Stan and Ford. Sparkle prefers romantic relationships.
Pacifica Northwest is a straight cis girl and uses She/Her pronouns, alloplatonic and afamilial, aesthetickin and has depression. She is in cis for trans relationship with Dipper.
Ford Pines is an aromantic vinician cis man and uses He/Him pronouns, demiplatonic and allofamilial, a caregiver and a pet caretaker, autistic and has C-PTSD. He is in a cis for trans queer platonic marriage with Fiddleford.
Stan Pines is a GNC birose cis man who uses He/Him pronouns, polyamorous, alloplatonic and allofamilial, a caregiver, AuDHD and has depression. He prefers familial relationships. He is in a throuple with Eda and Rick.
Fiddleford McGucket is birose trans man that uses He/It pronouns, alloplatonic and demifamilial, a raccoon therian and raccoon regressor, and has C-PTSD. He is in a trans for cis queer platonic marriage with Ford, his caretaker.
Luz Noceda is birose bigender and uses neopronouns She/He/😺/🐾, alloplatonic and demifamilial, cat therian, a toddler regressor and has ADHD. His caregiver is Eda, her found mother. She prefers platonic relationships, like her found cousins Dipper, Mabel and Morty. 🐾 Is in a relationship with Amity
Amity Blight is a lesbian cis girl and uses She/Her pronouns, alloplatonic and allofamilial and has GAD. She is in a relationship with Luz.
Eda Clawthorne is a birose trans woman and uses She/Her pronouns, aplatonic and allofamilial, a caregiver and has PTSD. She is in a throuple with Stan and Rick.
Lilith Clawthorne is an aroace trans woman and uses She/Her pronouns, demiplatonic and allofamilial, autistic and has PTSD.
Morty Smith is a bicurious cis boy and uses He/Him pronouns, alloplatonic and allofamilial, dog therian puppy regressor and toddler regressor, has GAD and AuDHD. His caregiver and caretaker is Rick.
Rick Sanchez is a demiromantic pansexual trans man and uses He/Him pronouns, aplatonic and afamilial, caregiver and per caretaker, autistic and hypersexual. He is in a throuple with Stan and Eda
