Just watch

I decided to watch the action, in the next room.

Dan rolled Gina over onto her side and straddled her right leg. She was now lying on her side facing me with her left leg still lifted onto Dan's shoulder as he again lined his cock up with her and began thrusting again. In this position she was far more exposed to my eyes, and I found myself staring at the mesmerising spectacle of Dan's cock repeatedly spearing Gina's swollen pussy. I was holding mine in my hand now having extracted it from my pants and he looked to be at least fifty percent thicker than me, perhaps pushing two inches across. The size of his tool was clearly stretching Gina 's young slit. She was wet and glistening, and reddening as her pussy swelled with the insistent thrusting with his thick cock. Her breasts were fully exposed to me and as she opened her eyes a look of shock flashed across her face before being replaced with a lewd smile. She'd clearly seen me there but to my surprise her only reaction was to wink as she began playing with her breasts. She squeezed them, alternating one then the other as she pulled them up and toward me, as if offering me her nipples.