The Camping Trip (Very Dirty Story)

Every summer my whole family always went on a road trip together. It was usually camping, or hiking; some sort of outdoor activity. Unfortunately for me, I was the only boy in the family. I was always surrounded by all of my female cousins who did nothing but complain all the time.
The first vacation that I can fully recall, I was either 8 or 9. But before I get too far into the story, let me give you a little background about my family. There's my mother and my father. I'm an only child so no siblings. Then there were my aunt Jenny and uncle Elliot, and then the other couple aunt Melanie and uncle Nick. But this story isn't really about them. It's about their daughters; my cousins. There were three of them. Gracie, Isabelle, and Shyla.
Anyway, back to the story. The first vacation I can remember, I was about 8 or 9, we went camping. The girls did nothing but complain the whole time. Isabelle twisted her ankle wandering the campsite and refused to walk the entire time. To make matters worse, it rained and flooded the campsite. This rendered the girls' tent unusable, therefore they had to share mine. I wish I could say something became of that, but nothing did. All I got was an earful of complaining from the girls.
The next year wasn't much better either. In fact, The next 5 years were pretty uneventful. The girls complained. We were all miserable. Nobody really had fun. The year after, things started to change.
Gracie and I were 13; Isabelle and Shyla were 14. We had gotten to the point where we were finally allowed to go out and adventure around the campsite on our own. This seemed to quell the complaining of the girls. They actually became tolerable. Probably due to the fact that they were growing into rather beautiful girls. Isabelle had grown her jet black hair down past her shoulders. Her gray eyes were mesmerizing; I found myself staring into them whenever she was talking to me. She was thin, but had curves in all of the right places. Gracie had shoulder length blonde hair that went down to her shoulders. Her eyes were blue and crystal clear. She had a smile that could tempt a fish out of the water; And as stunning as the other girls were, Shyla was by far the best most beautiful. Blonde hair like her sister, bright green eyes, and luscious lips. She had curves in all the right places; so much so that I spent most of the summer, trying to touch her in any way I could. Actually, I tried to touch all of them, and I never got a chance until the 2 nights before we left.