The siblings, attempting to break the awkward silence, were still being treated to the multi-orgasmic compilation that was their parents fucking. The moans and grunts were increasing in volume, and it wasn’t going to be much longer before their parents finished. Hopefully.
Debating on whether to turn and go back to her room and try to get some sleep, Shelby couldn’t ignore her pebbled nipples and the way the slight shifting of her arm across them sent little shockwaves of pleasure to her clit.
Her pussy was positively drooling. The sounds of her parents fucking and the sight of that massive dick Mark was failing to hide were causing errant thoughts to run through her head.
She badly wanted to cum on a fat cock, and as tempting as her brother’s looked, she didn’t want to jeopardize the relationship they had. They weren’t close, only a year apart, and they didn’t really have anything in common. They were just family.
They were complete opposites. She being a quiet nerd type, complete with glasses and long brown hair which was neatly braided. And him with lean muscles and a basketball player’s physique.
Hoping her brother couldn’t see what felt like a giant wet spot in her panties, Shelby turned to say goodnight and return to her room, when her brother groaned as if in pain.
Shelby rushed from the door to sit by her brother’s side, her braid coming loose. “Oh shit! Mark, are you ok?”
All Mark could do was clutch at his groin. He’d never experienced such a severe case of blue balls.
At least, he hoped it was blue balls.
It ached to even think about cumming.
“Yeah, sorry Shell. You, uh, caught me just as I was fixing to finish and the sudden stop… It’s not a pleasant feeling.”
Shelby wasn’t a prude, she knew about orgasms and sex. But hearing someone mention it caused a deep red blush to stain her cheeks.
“Sorry, Mark. I didn’t think. I only came in to have some company while the pornstars went at it. Is there anything I can do to help?”
Trying to not stare at his beautiful sister’s hard nipples, he failed miserably. He reached out and lightly twisted her nipple. Surprised at the way her eyes seemed to glass over and the soft moan that escaped from her pouty lips.
None of which was helping his boner go away.
“I should go. Back to my room.” Shelby reluctantly stated.
Hurrying to leave before anything else happened, Shelby strode quickly from the room and across the hall to her own where she hastily closed the door before frantically tearing her clothes off.
Climbing on the bed. She grabbed her favorite vibrator, newly named Mark. Flipped it to the highest setting before quickly sliding it as deep as she could in to her soaking wet pussy.
“Oh, fuck me, yes! Oh, Mark!” Sliding the vibrator in and out, circling her clit before sliding it back in to her pussy. Wishing, aching, for it to be her brother’s cock filling her. Feeling the clench of her pussy and how wet she was.
Moaning with each thrust of the vibrator, wanting it to be her brother’s fingers twisting and flicking her hard, sensitive nipples.