I am probably just extra stupid, but I have this...theory? au? idea in my mind that Lester and Pester are not the same person.
(I'm just looking too much into it, it's just an au at this point)
Lester was Peter's original name, but his father (the one who worked with Jardiniero) took his name so he could get away with messing around with candy and sour things, like, change his own identity.
Lester started hating his own name because of that, that's why he changed it to Pester. He was also Stardos childhood bestfriend, they met since Pester's father started taking him to the garden so he could help with work.
Bart was also friends with them :)













