So you're going camping with us this weekend? Are you anxious about it? I mean, it's the first trip with your girlfriend's family, I could understand if you're nervous... especially with my family. What? Didn't my sister tell you how weird we are? Of course she didn't... probably thought she could keep it a secret haha. Well not for long... and as a matter of fact I should just tell you right away so you don't look too shocked when something happens.
In this short story, your sister is telling you what happened on that camping trip 2 years ago and what is the consequence for your girlfriend now... spoiler alert : diapers.