I Can't Do This, Not Without You (Cake 5SOS...
It isn't until a drunken event at a party that turns Calum's world around in ways he would have never imagined.
(This story is boyxboy, including the bromance Calum and Luke, with minor swearing. This also has mpreg. So if you don't like that kind of stuff, then don't read it. It's that simple.)