Disclaimer: This is a work of fiction concocted entirely within my imagination. Any resemblance to real people shouldn't be surprising since most of my stories are based on people I know. While I hope you enjoy this story and are compelled to provide feedback, I don't expect the subject matter will appeal to everyone who reads it. As such, I discourage venomous, nasty feedback full of violent wishes against essentially fictional characters in fictional situations. If this story does not appeal to you, there is undoubtedly one somewhere on Literotica that will, so your energy will be better spent on finding it rather than on vilifying me.
Note: If you haven't read them yet, Passion in the Parking Lot and Meeting at the Mall are the prequels to this story.
Cristi and I had been extremely careful not to put ourselves into a position where there was a possibility of getting caught sneaking around together. Of course, fucking in the parking lot of the grocery store or the mall dressing rooms doesn't sound like the behavior of two people being careful but, after that first spontaneous event, we really did plan carefully and remain on alert. We also typically did not drink when we were together because then we might get careless, but when we got together with all of our friends, we almost always had a few cocktails. We should have realized that it would only be a matter of time before we got a little daring.
To celebrate my 40th birthday, seven couples including my wife and me and Cristi and her husband Brad took the "Blues Bus" to my favorite restaurant for dinner and drinks. We had an incredible time and Cristi and I managed to maintain our decorum at least until we were heading home. My wife had declared as we boarded the Blues Bus again for the trip home that no one was allowed to sit with their spouses. I lucked out that Cristi was near enough that she plopped into my seat with me. Once the interior lights had been turned off and we were on the road, I slipped my hand over to caress Cristi's tit through her blouse. Her nipple immediately went hard, along with my cock.
She'd brought her jacket along, though she was not wearing it, so I spread it out a bit over her lap, then slipped my hand under it. I ran my fingertips lightly over her pussy through her pants before unbuttoning and unzipping them. Sliding my fingertips over her panties, I could feel that they were growing damp and I could hear her breathing rate picking up the longer I did it. I had a feeling that it would not take long to get her to an orgasm and that there was little risk of interruption, so I slipped my hand into her panties. My fingertips passed through her trim bush and soon found her dripping slit. She almost gasped as my finger lightly caressed her clit and I could feel her subtly moving her lower body in rhythm with my finger. It was difficult to finger her slippery pussy within the confines of her pants, so I focused on caressing her clit while trying to appear completely nonchalant. To anyone who might look, she probably appeared to be napping because her eyes were closed, but she also had a smile on her face.