Chapter 8 by Sprhr2

What did your mom pack?

A butt plug

Your mother smiles naughtily. "Yes, I packed something just for you, baby." She turns, careful of what Robin and your father can see. She quickly pulls her shorts and underwear, revealing that she's inserted a jeweled butt plug in her ass. Your mouth falls open. She knows she only had a moment and she pulls her shorts back up and turns back to you, whispering breathlessly in your ear. "I remember how much you loved making me wear the butt plug you gave me during our fling. I kept it... And to be honest I wear it sometimes and touch myself listening to you fucking Robin."

She is almost moaning telling you, and you are unsurprisingly harder than before. Your thoughts are mixed with both ideas of sneaking around later to fuck your closet slut of a mother in her ass, and thoughts of her spying on you. You're imagining times you've really pounded Robin, and now adding thoughts of your mother hidden away cumming with you and Robin while imagining your cock in her again.

She looks down at your bulging crotch, gently and quickly strokes it through your shorts, and licks her lips. She purses her lips in an air kiss and winks before climbing into the passenger seat next to her oblivious, neglectful husband. You gulp hard and can't wait for your fun later.

As you climb into the back though, your mind is snapped back to your beautiful sister/girlfriend. She's taking advantage of the parents getting situated up front and is leaning towards you as she pulls her top down, revealing her tits and showing you how hard her nipples are.

You smile at her and climb in. "Everybody ready for this?" Your father asks. He has no idea how ready everyone else in the car is for what's next.