Author's note: Here's a nice long chapter with a pile of debauched mayhem. There's a whole lot of butt-play as well as the usual incest and a bit of exhibitionism for those who like that kind of jazz. I had a bit of fun trying to write 'casual' sex scenes in this chapter, with participants being somewhat distracted or doing other things while the fun is happening. It took a bit of finessing, but I'm pretty happy with the result. Really appreciate the helpful and nice feedback I've gotten so far - thanks to those people who have sent me messages or left a comment. Hope you like it!
*****
By the time Catherine and I had made it home, rain was pouring from the sky in heavy, fat drops and the wind was whipping the trees to and fro. An epic summer storm had blown up as Catherine and I were driving back from the city and I'd been forced to drive slowly as the cars sharing the road with us slowed to a crawl thanks to the horrendous conditions and minimal visibility. Despite the late hour of our arrival, mom was still awake, sitting at the kitchen table with her laptop open. When she got up to give Cat a hug upon our entrance, I couldn't help but notice the large men's t-shirt she was wearing left the thong she was wearing rather visible.
Mom told Cat her bed was made up for her and my sister quickly said thanks before heading down to the basement to her room, leaving me watching as mom saved the document she had been working on and closed her laptop.
"What's all that stuff?" I asked, trying not to stare at my mom's ass as she stood up turned to pick up her computer.
Mom gave a tired sigh. "Grant applications for library funding I have to submit tomorrow."
"Sounds terrible," I said, giving her a sympathetic smile.
"It's only slightly less interesting than watching paint dry," she said with a hopeless grin. I followed her up the stairs, eyes infallibly drawn to where her thong rode up her asscrack before disappearing under the hem of my dad's old t-shirt. "Thankfully I'm almost finished. Just have to give them a proofread before I go to bed."
We said our goodnights on the landing and I headed into the bathroom to brush my teeth. I was about to head to bed when I figured I'd ask if mom wanted me to go over the grant applications. An extra pair of eyes never hurt when it came to proofreading.
"Hey mom," I said, knocking on the door, "did you want me to read over those grants?"
"Come in, hon," came the reply. Mom was lying on her stomach on the bed, laptop in front of her. The t-shirt she was wearing had ridden up, exposing her ass in all its glory to my eyes as I entered the room. "That's very kind of you to offer."
She rolled over and patted the spot where she had been lying. Closing the door behind me, I hustled over and climbed up next to her. Mom hadn't been kidding about it being dull work, but I plowed through the documents as best I could. Complicating matters was the fact that mom leaned in next to me as I worked - her heavy bosom pressed against my shoulder, her soft scent filled my nose, and I could feel the smooth skin of her leg against mine. Nevertheless, I endured, managing to find a few grammar mistakes and other minor errors despite my cock's best efforts to drain the blood from my brain.
"Thanks, dear," said mom as I reached the end of the final document.
I rolled over onto my back and rubbed my eyes, momentarily forgetting the monumental erection tenting my pants. "No problem, mom."
Once I'd shifted to a kneeling position, mom took my place lying on her belly in front of the screen. She began finalizing the the changes I'd suggested, adding a word or taking a few out here and there. While she worked, my eyes wandered down the luscious, overripe curves of her buttocks to linger on the heavenly crevice into which the string of her thong vanished. Remembering her offer from the other night, I gathered my arousal bolstered courage and spoke; "Uh, do you, um, mind if I rub one out?"
"Of course not, honey," said mom, smiling warmly as she looked over her shoulder at me. "You don't mind if I keep working on this, though, do you?"
I had been hoping for a chance to play with her boobs again and was a little disappointed, but I tried to hide it. "Course not, mom."
Her supernatural maternal instinct was infallible, however, and she picked up on my attempt to sound casual. "Aw, hon, I'm sorry I'm too busy to play," she said, without moving from her prone position. "Tell you what, though; do you know what 'hotdogging' is?"
I nodded vigorously.
"I should have known," she said, smiling ruefully. "The internet teaches everything, doesn't it? Go ahead then, hon."
If they had an olympic event for pants removal, I would have taken the gold. My shorts and boxers were gone in a flash, leaving me kneeling behind my mother, my tumescent dick swollen to gargantuan proportions in anticipation for what was coming next.
"Eager, aren't we?" said mom, eyes twinkling. "This has got to be fast though - I have to get to bed soon."
I couldn't believe my luck. Straddling her shapely legs, I slapped my rigid tool into the heavenly valley of her asscrack and placed my hands on her warm, smooth skin. Practically shivering with pleasure, I mashed the divine globes together, watching with lust-filled eyes as my fingers sank into her butt and her glorious asscheeks wrapped around my needy cock.
"There you go, hon," encouraged mom. "Doesn't that feel nice?"
"Ohhh fuuuck," I moaned as I nestled my engorged shaft in her crack. From somewhere deep inside my lust-fogged head, my brain managed to remind me that swearing in front of mom was usually not a good idea. "Uh, sorry! I mean yes, it's nice!"
Mom gave a throaty chuckle. "It's alright dear. When we're having a little fun like this, it's alright to curse occasionally. Go on, fuck my asscrack."
I smiled sheepishly as I began to flex my hips, pumping my cock slowly into the tight, warm embrace of my mothers buttcrack. "Oh my god, mom, this feels amazing!"