[MF] Getting adventurous in the back seat of a truck…while her Dad was driving

This is my first post here, so sorry if I’m not good with the details. This started as a comment to another person’s story, but I decided to make it my own post as I figured others may want to read it, instead of being buried in comments.

So, this happened years back with an ex. She was 21 or 22 at the time, and I(M) was about a year younger.
We were traveling to some car show a few hours away, because her Dad owned a show car, which we were towing behind the truck on a trailer. It was early in the morning and the two of us were in the back seat of his quad cab. Her Dad and his car-buddy were talking away while riding in the front seats with her Dad doing the driving. She was leaning on me, with her back against me, and I had my arm around her. I was leaning against the back passenger side door. It was chilly, so she had a blanket on.
I had been slowly caressing her thigh for a bit, and occasionally running a finger up and down the seam in her jeans that is over her crotch. I could tell she was getting excited by the way she was minutely squirming against me, and I could hear and feel her breathing was getting deeper as well. I decided to see how far I could go, fully expected her to stop me. But she didn’t stop me when I unbuttoned her jeans and slowly unzipped them. I slowly reached my hand down inside her opened pants, slipping my hand inside her cotton panties.
I ran a finger along her swollen slit, which was slick to the touch from all my teasing. I then started play with her clit, which I knew from past experiences was very sensitive. I couldn’t move my hand or fingers much because I couldn’t be too obvious, so I ended up bringing her to a silent/shuddering orgasm after about 5 minutes of massaging her clit between my pointer and middle finger.
I was kinda gently squeezing her clit between the middle parts of my two fingers while alternately moving my fingers up and down in a scissoring motion. I could smell her musky aroma, and I don’t know how her Dad didn’t smell his daughter’s arousal while driving just a few feet in front of us. I’m lucky the truck was a diesel, so it was a little louder inside and the two in the front couldn’t hear her heavy breathing as well.
It is still probably the riskiest thing I have done sex-wise.

Source: reddit.com/r/gonewildstories/comments/yw9u4l/mf_getting_adventurous_in_the_back_seat_of_a