I no longer cared either as I was close to eruption. Vicky covered her mouth and I watched her come... and then felt it... as she collapsed on my d*ck, her juice leaking onto me.
I hadn't come yet.
But I didn't care.
I wanted her to enjoy the game.
Then she surprised me again after a couple of minutes of recovery.
She got off my d*ck, moved to the side and took my d*ck in her hand.
She began stroking me and moving around, so her back was against Dad's seat. She leaned her head down trying to suck me, but couldn't reach in the confined space.
Realizing what she wanted to do and realizing that it was definitely what I wanted her to do, I moved up so I was on my knees, my head having to crane awkwardly against the roof as I was too tall. It was enough though for her to be able to take my d*ck in her mouth.
All these things happening while our parents are inside the car. I thought my dad would have noticed but he kept driving. I wondered what will happen if he found out. My mom I don't know her mind. It seems she saw us but, why did she covered us.
She bobbed furiously, tasting herself on my d*ck, which only made the surreal session even more so.
I wasn't going to last long, her mouth was like heaven. And in under a minute... I shot my load in her mouth.
Unfortunately, I couldn't warn her and thus she wasn't ready for the excessive load I shot into her mouth. She gagged and my second rope hit her dead in the face just as Mom moved the box again and witnessed my third rope splatter her daughter.
Mom didn't say a word... just watched in shock... as one last rope shot out of me and onto my cute step-sister.
I looked at my step-Mom, who was staring down at her step-son's dick and her daughter's cum coated face with a look that was completely unexplainable.
It wasn't anger as one would expect.
It wasn't even completely shock.
Vicky had no idea Mom was watching as she leaned forward and took my d*ck back in her mouth.
Mom finally looked up at me.
I didn't know what to do.
So I shrugged.
Dad asked, "Everything okay back there?"
"Never better," I said, still with no idea what Mom was thinking.
Vicky took my d*ck out of her mouth as she added, oblivious that Mom was watching, "I'm persevering."
She leaned forward and licked my d*ck one more time, before I slid back down and watched as she scooped the cum off her face and put it into her mouth, smiling at me the entire time.
She then began to move back onto my lap, putting my still hard d*ck back in her pu**y, just as Mom moved the box back in position after glancing down at my d*ck one last time.
My head was spinning.
Both of them.
Mom didn't freak out.
Mom definitely looked down at my d*ck before moving the box back.
I shook my head at how this surreal, amazing day just got even stranger.
The next twenty minutes, we didn't say a word. I was expecting her to shout at me and alert my dad.