Fuck them both.

"Put that pillow under your ass Elynn." I smiled and she grabbed it and did as I said lifting her ass up in the air a little. "Now. Come get on top of her Iola."

"Like this." Iola said as she got up on all fours above her sister. She smiled back at me as she wiggled her ass a little.

"Lower. Pussy to pussy." I smiled. Iola got the idea and lowered her pussy down till the where touching. I took the my cock in hand and rubbed it up and down between their pussies. My head slapping up and down against their clits. I pushed my dick deep into Iola and began to fuck her harder and faster then before. Her pussy rubbing slightly against her sisters as her cute ass began to shake slightly.

"Oh. Shit...." One of them muttered. It was hard to tell which one. Maybe both. I fucked her for a good minute. Elynn grabbed her sister ass and held it firmly. Iola's tits rubbed against her sisters as she leaned down more.

I pulled my cock out and slid it into Elynn and started fucking her. She gave her sisters ass a tight squeeze as her fingers made impressions in her sisters ass. Iola was grinding her pussy against her sisters or at least trying anyways. I went back and forth into each of them until I could feel my cock about ready to explode.

Who do you want to cum inside?