I felt something hard pressing against my belly. It was the wallet of the man in front of me, bulging out his hip pocket. I found that if I pushed my hips slightly forward I could actually position that hard bulge against my pussy mound. Of course this was a deliciously naughty thing to do, so of course I did it. And it felt very good. I boldly thrust my hips forward to let the man’s wallet probe my crotch, and secretly hoped he knew what I was doing. If this ride lasted long enough, I was sure I could have an orgasm humping that wallet. I remembered once hearing that “the size of a man’s bank account is a more powerful aphrodisiac than the size of his cock.” This man’s wallet was very well endowed.
I hadn’t forgotten Kevin. I rotated my ass over my son’s hardon. Behind me, Kevin groaned, “Oh shit, Mom.”
“Is my ass making you uncomfortable, sweetheart?” I whispered back to him.
“Fuck no,” he groaned. “Your ass is awesome.” His lips brushed the nape of my neck and then licked at my earlobe.
I hadn’t felt this turned on in a long time, and the fact that it was my son’s cock that was probing my ass crack didn’t lessen my excitement in the least. In fact, it added to the pleasure I was giving myself by trying to force a stranger’s wallet into my pussy through two layers of clothing.
“I’m enjoying this as much as you are, darling”, I whispered back to Kevin. My breathing and pulse rates were getting noticeably higher.
The car stopped at a floor and some people got off. The remaining passengers didn’t seem very eager to move apart from each other. The sexy little game we’d been playing was probably being played by others in the car.
My hands and Kevin’s were occupied holding our shopping bags, but that didn’t keep us from moving our lower bodies. Kevin rubbed his cock against my ass more rapidly, and I rotated my hips in slow circles, masturbating my son with my well-rounded bottom.
I gave up trying to fuck the man’s wallet. I knew now it was the cock behind me that I wanted, and with that realization I became determined that Kevin’s cock would be sheathed in my cunt sometime soon, maybe before this day was over.
We might have continued dry-humping each other all the way to Kevin’s orgasm if a few more people hadn’t gotten off at another floor. Everyone moved slightly apart, perhaps reluctantly. There was an audible sigh throughout the car.
The elevator reached our floor. Kevin and I stepped out into the hallway, and found ourselves alone there. Kevin was breathing rapidly and his face was flushed. His jeans front was tented out noticeably. I was panting a bit too, and I was sure my face showed the same signs of excitement that my son’s did. We took only one step toward our apartment door before we could no longer resist the urge to continue our sex play.
We dropped the shopping bags and were suddenly in each other’s arms. Our mouths tasted each other hungrily, and our hands groped at each other’s bodies through our clothes. We gathered up our purchases and staggered clumsily down the hallway, still kissing.