I don't have a lot so I hope this goes well
-Robin and Finney met in 3rd grade, when Robin Beat up finneys bullies and.Finney helped patch him up
-in 6th grade they hated each other for a while, because of an incident, but they couldn't stay away from each other, even if they tried
-Robin is older than Finney by a year
-Finney rambles about space and Robin absolutely adores it
-They started dating in 9th grade and Got married at 23-24
-after they got out of the basement, Robin would make jokes about the grabbers outfit before he got kidnapped
-They walk everywhere, most likely because Finney doesn't trust Robin driving (I think you know why)
-Robin proposed to Finn on his birthday, and they got married on Robins Birthday.
-They don't wear socks
-Robin is a Mama's boy, and Finney well............... let's just say he loves his siter very much.
-when Robin showed Finn TCM (Texas Chainsaw Massacre) Finn was all huddled up on Robins chest, Robin found it funny
-Finney is Gay and Robin is VERY Gay
That's all I can think of