Something like the one with Emily. Seeing another girl fuck your ass will be so hot.

"Something similar to the one with Emily. Seeing another girl fuck your ass will be so hot, babe. Also extra sexy if you repay the favor to her."

"Umm jerking my boyfriend off as he gets horny over another girl in front of me. That does make me wet!" Karen starts licking more deliberately, giving little kisses to your tip. "There's a folder called Lizzie the Lezzy. But you only get to do this, if you tell me exactly what you'd do to her if you got to fuck her."

You feel your cock harden noticeably. The thought of Karen actively encouraging you to fantasize about another girl made you leak precum all over her lips. You find and open the folder to be greeted with over a hundred images.

"Lizzie the Lezzy?" you ask, chuckling.

"I know it sounds funny," Karen replied, "but that's what we called her. You won't be laughing when you see how well she fucked me. You could learn a thing or two!"

You settle back, taking your time flipping through the photos, as Karen pleasures your cock with an almost slavish passion while you get a good look at how slutty she was.