To be perfectly honest, I'd been dreading the trip up to the lake in the beginning. But after the little episode in the kitchen, and then later on over the phone, I began thinking that it might not be quite so bad after all.
It was a four hour drive up to the lake. In the past while growing up as kids, we'd taken the drive in an old station wagon, not something I particularly enjoyed. Now however, dad had done well enough in his business to purchase a fairly nice motor home which we very often traveled in during much longer trips. Mom sat up front with dad of course, leaving Kris and I access to everything else. And though mom could very easily come back into the main area where we were, she never did, simply calling back to us to bring her up whatever it was she might want or need. It was because of that fact perhaps, that the element of danger added a bit of excitement to the mood we were both feeling on the drive up.
I had curled up on the seat at the small dining table and begun reading a book, Kris sitting across from me with her back facing the forward area where mom and dad were.
"What are you reading?" I heard her ask me after a few minutes. I glanced up towards her about to answer when I realized she had lifted the front of the tee shirt she was wearing up and over her boobs. She had purposely not worn a bra for the drive up. I took a sudden quick glance forward towards our parents, but mom as usual was nodding off in her seat as dad drove.
"What are you doing?" I answered instead, though lowering my voice to nearly a whisper as I spoke.
"What do you think I'm doing?" She grinned. "I'm trying to get a rise out of you!"
"Keep sitting there like that, and you will," I smiled back somewhat nervously, though I again checked to see that mom was still half asleep. "Oops, too late...I am!" I chuckled back at Kris, actually feeling my prick beginning to stiffen.
"Let's see!" she shot back at me.
"Yeah right," I retorted, and then watched as Kris started fingering her nipples as she sat there. She didn't worry about looking back, she knew I was keeping an eye on things, so enjoyed sitting there teasing herself as I watched her along with glancing up towards mom. After a moment or two more of this, she reached up pulling her tee shirt back down, recovering her breasts. I was actually disappointed that she had until she stood up, suddenly coming around to sit beside me rather than across from me. My eyes asked the question as she did that just before sitting down.
"Just keep an eye on mom," she whispered. In the next instant, I felt Kris fumbling with the zipper on my shorts, finally reaching in and drawing out my rapidly stiffening member. The moment I felt the slightly cooler air bathing my prick, it stiffened to a rock hard status that would have been next to impossible to get back inside my shorts again the way we were sitting. And though this too added to my nervousness, it escalated my excitement even more as she sat there fondling my dick, playing with it. I soon started leaking like a sieve, the slipperiness of my juice, which Kris now used to further stimulate me with had me bouncing in my seat. It was damn hard trying to concentrate on much of anything as I sat there holding my book open, still pretending I was reading as Kris glanced down at the table where she'd spread open the morning paper, her hand pleasurably working my cock up and down.
The sound of mom's voice as she spoke to dad had the two of us looking forward simultaneously in a moment of panic, though mom made no movement to unbuckle her seat belt and come back to where we were. Kris continued slow-stroking my cock too, hardly even missing a beat as we sat there, though our attention was now clearly focused up front. To my surprise, mom being awake once again intensified the pleasure and the excitement, causing even more pre-cum juice to bubble out of the head of my dick. Kris now stroked me in quick little squeezing, tantalizing pumps of my prick, the sounds of my squishy naughty juices easily heard by us, though I knew they couldn't be easily heard forward as even as mom spoke it was hard to tell what she was saying to dad over the roll and hum of the motor home as we drove. Still, Kris seemed to be purposely trying to make it even louder with each passing moment.
"Easy, easy!" I worriedly whispered. Kris had been stroking me for less than five full minutes and I was already starting to feel the telltale warnings of orgasm beginning to tingle deep within my balls.
She just looked at me smiling. "Tell me just before you do," she said matter of factly, uncaring that mom could at any moment, reach over, undo her belt and come back into the kitchen area where we were.
"You're not serious!" I said almost a little too loudly, causing mom to look back over her shoulder towards us, smiling as she did, and then speaking.
"What?" she asked looking back.
"Oh nothing, we're just talking about some friends we know," Kris responded smiling back, though her hand continued to manipulate my rock hard swollen cock thankfully hidden from view behind the bench seat. Mom shifted, scaring me momentarily into thinking she might actually get up and come join us, but she just nodded her head and then turned back to sit looking out the window.
And though mom had given us both a bit of a scare, it hadn't diminished one iota the sensation of my prick wanting, needing to squirt here momentarily as Kris continued to tease the tip of it now with her fingers, smearing even more of that delicious feeling fuck juice around and about the head of it.
"Say when," she again reminded me. I think I looked at her cross eyed, I was already sensing the first tingling spurt of ecstasy now seizing my balls, making them tighten.
