Read in order if you want the full experience. Read out of order if you feel like it. Read just one if that's the one calling to you. Read all of them if you've fallen in love with the characters and can't stop (like it happened to me while writing them) (≧∇≦)ノ
In the end, what matters is that you enjoy it. That you laugh. That you cry. That you feel. That you fall in love with these idiots as much as I did while writing them (´▽`ʃ♡)ƪ
Because this, at the end of the day, is a love story. And love, real love, doesn't understand orders or rules (◕‿◕)♡
So... enjoy.
Your way. At your own pace. However the hell you want.
That's what you're reading for, right? ( ̄ω ̄)
And now... I'll see you in the pages.
P.S.: If you read all three and then go back and read the first one again, you'll find things you didn't see the first time. Because that's how good stories work.
P.S. 2: If you only read the second one and then wonder "but what happened with that thing?", the answer is in the first one. Or in the third one. Or in both. Or in neither. But it's definitely in one of them. ( ̄▽ ̄)