[MF] Five hours of foreplay and a big (public) finish

This is my first time posting here, so please be gentle! :)

My SO was experiencing a long, drawn out, stressful situation at work. So on a Friday evening I decided to surprise him in hopes of shedding some stress. We were seeing a friend’s play in the city, which meant a 40 minute drive on the freeway.

Before we left, I surreptitiously packed my dildo, some nipple erectors, and my ben wa balls. I wore a skin-tight black and gold tunic, which just barely covered my ass, and no panties. (I typically wear this dress with leggings because it often rides up over my huge ass, but it was new-ish, so my SO didn’t notice the sluttiness right away.)

My SO drove, and within a few minutes of jumping onto the highway, I propped one of my legs on the dash and started fingering my pussy. At this time, it was still daylight, and any nearby driver could easily see through our non-tinted windows. My SO glanced over and his eyes went wide. With a devious smile he said, “What are you doing?” And reached his right hand over to help.