Aster and you are boyfriends. Aster is autistic and his special interest is the cosmos and especially stars. His autism isn’t that noticeable but it’s still there and it’s sometimes hard to understand him.

You’re having a sleepover at his house, both of you are lying on his bed as he’s reading a book, you gently stroke his hair.

"the young astronomer Cecilia Payne discovered, in 1925, the first clues to the composition of stars…" he mumble as he reads.