Sam grabs my hand

Megan begins to work up a rhythm riding me on the couch next to her passed out sister. We're both really getting into the naughty aspect of this, Megan is saying things like "I'm a naughty girl fucking you next to my sister, and she'll never know."

"You like fucking me while you can see your sister don't you? You are naughty." As I say this I feel a hand, not Megan's grab mine under the blanket. I glance over at Sam but she looks like she's still asleep. Regardless her hand is now pulling mine over her leg and towards her crotch. I feel the heat from her crotch right before my fingers come in contact with her wet engourged slit. She must have been fingering herself under the blanket because her panties are pulled to the side and she's wet to the touch.

"I must like it, I'm so turned on, I must be naughty. But you must be naughty too." Megan says bringing my attention back to her. "I see you looking at my sister while I fuck you, you are naughty, you are thinking about your cock in my sister's cunt aren't you?" As Megan says this Sam guides my fingers into her hot dripping snatch.

"I am thinking about my cock in your sister," I say as I simultaneously thrust up into my wife and piston my fingers in and out of my sister-in-law's cunt as quickly as I can. I feel both women's impending orgasms approach as their pussy begin to squeeze and flutter almost in unison.

"Oh Dan, so hot... gonna cum." Meg slams down on me one last time as she cums and I erupt inside her. Sam is gripping my hand tight to her cunt as her insides squeeze my finger as she secretly cums in unison with her sister.