It was all just a game, until things got serious.
For Blake, sleeping with Harry was just what it was, a part of being 19 and living in London. Of course everything is easy until it isn't.
It's funny, really, that their lives hadn't intercepted before that point. That all it took was one little thing that set off a chain reaction of circumstances which led them all to each other. But it was for the best, really, because in the end, with each other, they were all okay.
And if you asked them, the whole thing could be blamed on Liam sleeping in, for once in his life.