Sirius gets an irrational idea into his head, but he decides to act upon said irrational idea, only to discover something.
Disclaimer - I don't own Harry Potter. This was written for the 18th Froday Madness for Froday Flash Fiction Challenge where the theme is sharing a bed. I had a lot of ideas pop into my head, but it was rather hard to resist Sirius being Sirius as one of the tags indicate, but it involves two of my favorite altenative universe headcanon, Regulus living and Hermione being his daughter. It also involves me enjoying giving her a sibling, or in this case two, because Rowling mentioned she had originally planned on doing so yet she never got around to doing so.