We were on about a 45 min drive in the dark and me and my gf at the time were in the back of the car while my brother and his gf were in the front. We were just cuddling in the back at first under a blanket but as the conversation died down and we started to close our eyes my gf started to rub on me a bit. We were always a little adventurous but it was mainly just to have a little fun, we never really took it all the way.

I don’t know what was in the air that night but we started getting really horny in the back and I don’t know how well we concealed it was during the drive but she was massaging my now rock hard cock and buried her head in my chest. She then pulled the blanket over her head and grabbed my fingers to slide into her mouth. She knows this drives me crazy and it had the intended effect. I started whispering in her ear how hard I was going to fuck her when we got home and telling her that I love when she is this needy. She then came out from under then blanket and kissed my neck really hard and said I can’t wait that long and playfully bit my collarbone. She then said to my brother and his gf that she was going to take a nap the rest of the way home.

Going back under the blanket she turned it up a notch and slide her hand right into to my shorts to cup my balls and start playing with them. It was like she didn’t even care if we got caught and that turned me on even more. I put my fingers back in her mouth and started to feel my way under her shirt to start playing with her tits with my other hand. After she started breathing heavy on my fingers I switched the hands that I had in her mouth and worked my wet fingers down to her clit. I started slow at first to tease her but I could tell she didn’t like that at all because she squeezed my balls hard and bit my fingers a little bit. I then slowly slid one finger in at a time and tried to keep it slow to not get caught. After about 3 minutes she was breathing so hard I had to take my fingers out of her mouth and just cover her lips so she wouldn’t full on moan. I could tell she was getting close so I just kept doing the same thing so she could try to prepare for her orgasm. Thank god we were on the highway so the road noise and the music was a little distracting. I then made her cum and clean herself off my fingers

we aren’t together anymore but I’ll probably take this to the grave.