Stepbrother begs for a peed-on pee fetish session with his desperate stepsister

We’ve just come back from a long car journey with our fam. You take the bathroom first, locking me out, knowing I’m desperate to pee. I try my best to hold it in, even unbuttoning my jeans, but I end up wetting myself and ruining my new jeans. Thanks a lot, step-brother lmfaomiki step brother Im Desperate To Pee