As requested, the stepsister version of Kaitlin.

Your blended family is on the way up to the cabin in the woods, where they go every summer. Your stepmother is droning on about the neighborhood gossip, but it doesn't even seem like she's paying attention to herself. Your stepsister sees that your father is tuned out. And when she turns to you in order to try and gauge your reaction, well, the tent in your shorts is the what she can't help but notice.

What's wrong with you, you freak? You'd better do something before your (step)parents in the front seat clue in to what's happening...

Happy to make any tweaks if needed. Let me know. Always love the feedback.