Looking for an old incest story

[LuciusBlack]

I can't really remember the last time I read the story and I've forgotten a lot of the details but what I think I still remember correctly was that the story was about two cousins(M/F) with the main POV mostly from the guy's perspective. I think they and their families were going on a trip to somewhere in the southeastern US(maybe Florida?). I believe they grew up close but haven't seen each other for a long time, maybe because they live in different states, I can't exactly remember. Anyway, for this trip the two had to ride in the guy's family van's back seat due to the middle seats being stuffed full of luggage. This is where the story started: the girl fell asleep, the guy ended up fingering his cousin but then getting caught and things escalate from then on. I cant remember how long the trip took but they did make a short stopover for lunch which ended with the two having a quickie. Then they arrived at some kind of resort where they held the celebration with their families.

That's all the details I can really remember now and I'm not even sure if the story really was from this site but I hope you can help me find this story.