family trip to an indoor pool for winter break. We rented a large van and traveled together. My sister in law and I dated before I fell in love with her younger sister. My wife is hot as hell and has a much better pussy. Has a higher sex drive and always willing. Her sister is married but treats her husband like shit.
I am sleeping in the back and my SIL laying by me. Blanket covering me and I am wearing sweat pants for comfort. I wake up and feel her hand on my cock. Her husband and my wife in the seat in front of us.
She goes on to jerk me off and I motioned for her to stop. I did not want to cum in my pants. She did not stop, she dumped a load in my pants. She licked her fingers clean and rolled over.

We stopped and I had to tell my wife I had a wet dream. What a bitch she is. just like when we dated. She did childish shit like this. The final date she tried something like this and I held her down and fucked her. The following weekend I picked her sister up. We were married two years later. No childish shit from her.