Up All Night
This is a 1D sickfic. It was originally in my 1D sickfic book, and it was called All Boys Sick ~ Flu. So, if you enjoyed the first part, you should read this book!
Summary: Harry is sick with a flu and calls Louis. Louis brings Liam, Zayn and Niall, and finds out that Nialler is sick too! Can Louis, Liam and Zayn take care of their bandmates without falling ill themselves?